Questions on Geometry: Triangles answered by real tutors!

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Geometry: Triangles

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Question 29782: At a point 150 feet from the base of a radio tower, the measure of the angle of elevation is 68 degrees. What is the height of the radio tower?
Click here to see answer by Cintchr(475)

Question 29878: A rectangle and a triangle have equal areas. The length of the rectangle is 12 inches, and its width is 8 inches. If the base of the triangle is 32 inches, what is the length, in inches, of the altitude drawn to the base?
Click here to see answer by Earlsdon(4900)

Question 30116: In (triangle)ABC, if A and B are acute angles, and sin A =10/13 ,
what is the value of cos A ?
please help, need to know how to do this on my calculator too.
thank you
Click here to see answer by Paul(988)

Question 29502: a scale drawing has a scake of 1 in.:10 ft. what is the distance on teh drawing for an actual distance of 20ft?of 45 ft?
Click here to see answer by checkley71(8405)

Question 30368: If the height and the base of a triangle are doubled, what happens to the area?
Explain.
Click here to see answer by checkley71(8405)

Question 30885: For a right triangle, if the length of the hypotenuse is 6 and one side is x. How large could x be to maximize the area.
Click here to see answer by Nate(3495)

Question 31174: This problem just confuses me to no end. Please help.
M is the midpoint of AB and P is any point in AM. Line MD meeting BC at D is parallel to PC. Prove that triangle BPD has half the area of triangle ABC.
This que
In triangle ABC, stion is so hard. I really hope you can find a solution! Thank you!!!
Click here to see answer by venugopalramana(3286)

Question 31363: An equilateral triangle has an area of 300square root of 3. Find the apothem.

My teacher said that there is a formula that can be used to find this. I have looked and looked but have not been successful yet. She said it has to do with the connection between the area and perimeter of equilateral triangles. I tried to find the perimeter of the triangle by using the area formula A=1/2bh. I was unable to get anywhere close to the area. I don't know what else to try. Could you please help me?
Click here to see answer by Earlsdon(4900)

Question 31515: One side of a triangle is twice the shortest side. the third side is 3 feet more that the shortest side. The perimeter is 19 feet. Find all three sides.
Click here to see answer by mukhopadhyay(490)

Question 31541: One angle in a triangle measures twice the smallest angle, whereas the largest angle is six times the smallest angle. Find the measures of all three angles.

Click here to see answer by checkley71(8405)

Question 31556: What kinds of symmetry to an equilateral and an isosceles triangle have?
Click here to see answer by InYourEyes(5)

Question 31722: what do you do when your are trying to find a missig measurement for an angle what is the formula for it for example 50 degreese , 40 degreese and __ degreese what do you do to find the measure of the angle
Click here to see answer by benni1013(141)

Question 31738: An amount of fencing makes an equilateral triangle with sides 8 feet each. the same fencingf material is used to create a rectangle with 2 lenghts of 15 feet. What is the width of the rectangle?
Click here to see answer by mukhopadhyay(490)

Question 32170: Goodevening, please i cannot work out with your answer. I beg you again please answer me clearly

In a 30,60 right triangle, if the opposite side of right angle is 6 units, find the area of the triangle?
Click here to see answer by venugopalramana(3286)

Question 15202: The degree measures of the angles of a triangle are (2x+4), (x-10) , (3x-6)
-find the value of x
-find the measure of each angle
-
Click here to see answer by mukhopadhyay(490)

Question 32801This question is from textbook Addison Wesley Geometry
: Chapter is tittled "Right Triangle Relationships"
Where the altitude is MQ and the hypotenuse is NP.......... The question is this: If MN = 8, QN = 6, What is PN? I have tried to help my 9th grader, but Geometry was not my strong subject when I was in high school. He has a quiz over this tomorrow. Any chance anyone is out there who can help with the answer and explanation yet tonight so he can look at it and understand it in the morning before he goes to school? This question is from textbook Addison Wesley Geometry

Click here to see answer by venugopalramana(3286)

Question 32903: the base of a right triangle is one and half times its height .if its area is 27 sq.m find its base?
Click here to see answer by Paul(988)

Question 32983: find the perimeter of a triangle with sides measuring 4 3/4 in 3 5/8 in and 5 11/16 in

thank you
Click here to see answer by sarah_adam(201)

Question 19936: If I have a right triangle with one side measuring 3" and one measuring 17.5", and the hypotenuse measuring 17.75 (if I used the pythagorean theorem correctly), how do I find the measurements of the other two angles?
Click here to see answer by stanbon(26297)

Question 33430: Could you please help? I think I may have it but not sure...Find the measures of the angles in each triangle. 102 degrees+(38+xdegrees)+x degrees=180 degrees
I came up with 102+x+(38+x)=180 2x + 140=180 - 140 -140 2x=140 so x=70?
can't figure this one. 3x+5x+x
Is it x=33.3
Click here to see answer by stanbon(26297)

Question 33436: You have a triangle 6 1/4 high, 24 long, and Hyp of 24.8. one known angle of 90 degrees, what are the other two angles?
Click here to see answer by sarah_adam(201)

Question 33374This question is from textbook

: What is the area of a triangle with the sides of 2.6 ft., 3.4 ft., and 4.1 ft.This question is from textbook

Click here to see answer by mukhopadhyay(490)

Question 33373This question is from textbook Fundamentals of Algebraic Modeling

: What is the area of a triangle if the sides are 2.6 ft.,3.4 ft., and 4.1 ft.This question is from textbook Fundamentals of Algebraic Modeling

Click here to see answer by priya(51)

Question 33568: how do you form 5 eqilateral triangles using 9 sticks of equal length?
Click here to see answer by kietra(57)

Question 33655: I have a right triangle with one known angle in addition to the right angle and the length of the side (b) between these two angles. The length of side (b) is five. How do I find the length of side (a)? Side (c) is also unknown.
Click here to see answer by venugopalramana(3286)

Question 33350: A playground, a 48 m square, is going to lose part of one corner (15m x 15m triangle) due to construction. They will take the triangluar section and add it to the two perpendicular square sides. Find the approximate width of the strip that will be added to each of the two sides.
We think it is the area of the triangle (1/2bh) 15 x 15 divided by 2 = 112.5 and add this to the area of the square (48 x 48 = 2304. These two added 112.5 and 2304 = 2415.5....we were told to then find the square root of this # 2415.5...but this just doesn't sound right to us. HELP! We tried other ways and were told it is wrong.
Click here to see answer by Fermat(127)

Question 33829: This is on Ptolemy's theorem. If CD =1, BC = 2, AD = 3, AB = 4, and the triangle ADC is a right triangle, can the quadrilateral ABCD be inscribed in a circle?
Yes or No
Click here to see answer by venugopalramana(3286)

Question 33995This question is from textbook prentice hall pre algebra
: A triangle has vertices (-2,1),(5,1),and(0,6)What is its area. Could someone explain to me how this is done. Thanks for your help.This question is from textbook prentice hall pre algebra

Click here to see answer by mukhopadhyay(490)

Question 34023: Y = 22 + .8Y + 65 + 14 - 11.
How do I solve for Y.
Thanks much.

Click here to see answer by sarah_adam(201)

Question 34197: PLEAS I NEED HELP
1.IF ONE OF THE ANGLES IN A RIGHT TRIANGLE MEASURES 45 DEGREES, WHAT ARE THE MEASURES OF THE OTHER TWO ANGLES?
2.FIND THE PERIMETER OF A TRIANGLE WITH SIDES OF 4M, 2.3 M AN 3.7 M
PLEASE HELP
Click here to see answer by sarah_adam(201)

Question 34395: i have no idea where to begin on this question. it is on a worksheet:
the measures of the angles in a triangle are in the ratio 2:5:8. Find the measures of the angles.
Click here to see answer by askmemath(368)

Question 34737: Find the measure of each unknown angle in triangle ABC if angle a=(42-x)degrees
and b= ( 9x - 32)degrees
Please find A B and C
I am not even sure where to begin! Yikes
Click here to see answer by Earlsdon(4900)

Question 34857: Hi,
Could someone please answer this for me
Tell whether a triangle with side of the given lengths 15,15,21.2
is 45,-45,-90 degrees 30,-60,-90 degrees or neither
I gave 45,-45,-90 and the answer was marked wrong.
Thanks
Click here to see answer by usyim88hk(157)

Question 34918This question is from textbook
: A Triangle is bisected down the middle. The height is 15 and the two hypotnuses are 25 and y. What is X and Y?This question is from textbook

Click here to see answer by venugopalramana(3286)

Question 34917This question is from textbook
: A Triangle is bisected down the middle. The height is 15 and the two hypotnuses are 25 and y. What is X and Y?This question is from textbook

Click here to see answer by venugopalramana(3286)

Question 34916This question is from textbook
: A triangle is bisecteddown the middle. The two bases are x and y but together they equal 12. What is X and Y?This question is from textbook

Click here to see answer by venugopalramana(3286)

Question 34858: I don't understand Inequalities for Sides and Angles of a Triangle. So can you please help me better understand it???? I hope you can and thank you if you can!!!!
Raven
Click here to see answer by venugopalramana(3286)

Question 35071: In a triangle labeled "a", "b", "c" the length of ac is 12. Also, a line is drawn from the vertex of "b" to a point on line ac. This point is labled "d", and helps to form 2 triangles that are labeled abd and cbd. If the ratio of the area of trangle abd to the area of triangle cbd is 3:5, what is the length of segment ad?
Click here to see answer by venugopalramana(3286)

Question 35099: simplify the following algebraic expression
1000^0
------1
1000
Click here to see answer by kay308(3)

Question 35230: Could someone help me with this?
A right triangle has legs of lengths 7m and 9m. Which is the best estimate of the length of the hypotenuse? 10m,,11m,12m,13m
Click here to see answer by venugopalramana(3286)

Question 35424: hello I have 2 questions i was assigned to draw and label each figure
a. an isooscelees traingle with area equal to 32 square inches.
b. A trapezoid with area equal to 50 square inches.
may you please help me
thank you
Click here to see answer by Nate(3495)

Question 35490: Real World Question:
I am considering buying a house where the house(garage door)will be set back 25 feet from the curb. The house will sit 4 foot higher than the street.
I am trying to figure out the slope of the driveway -- but my Algebra & Geometry are pretty rusty (it's been 35 years) -- can you help me determine the angle/slope for this driveway. (assume it is consistent angle from curb to garage.)
Thanks in advance for you assistance.
Click here to see answer by Earlsdon(4900)

Question 35580: Hi,
Could you explain how I would do this word problem? Thanks!
The perimeter of a triangle is 24cm. One side is 2cm longer than the shortest side. The longest side is 2cm less than twice the length of the shortest side. Find the length of each side of the triangle.
Click here to see answer by stanbon(26297)

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