Questions on Geometry: Triangles answered by real tutors!

Tutors Answer Your Questions about Triangles (FREE)

Question 177610: 4x^2-4=3x^2-3x
Click here to see answer by kollanag(3)

Question 177732: okay, i am doing proofs in class and i have had three tests and failed them all. Not to mention im a transfer student and have never taken Geometry before. I had taken Algebra and Algebra 2 but no math this year, so they put me in this Geometry class half way through a semester. I need to know what to expect and how to learn it FAST.
p.s. i had already asked for help for peers and teachers, im un teachable.!
Click here to see answer by Mathtut(3670)

Question 178000: I'm trying to help my niece with an isoceles triangle question. It's been years and I have forgotten the formulas! The vertex is 20 degress larger than a base angle. What is the measurement of each angle? Thank you!!
Click here to see answer by stanbon(57982)

Question 178133: use the coordinate notation to describe the translation
7 units to the left 9 units up
Click here to see answer by jim_thompson5910(28717)

Question 178260: Two vertical poles have heights 6ft and 12ft. A rope is stretched from the top of each pole to the bottom of the other. How far above the ground do the ropes cross? Please spell out steps!
Click here to see answer by EMStelley(187)

Question 178098: If ABC is ab equilateral triangle, and P is any point on the circumfrence of the inscribed circle, prove (PA)^2 + (PB)^2 + (PB)^2 is constant
Click here to see answer by Alan3354(31537)

Question 178287: In right triangle ABC, with right angle ACB, AC=8 inches and BC= 6 inches. Point X is on segment AC, equidistant from A and B. Find CX. I need some help with this. Thanks!!!
Click here to see answer by scott8148(6628)

Question 178457: you are building a ramp that will be in the shape of a perfect right-angle triangle. The vertical height of the ramp will be 10 feet. the horizontal base of the ramp will be 15 feet. What will be the length of the downward sloping side of the ramp?
Click here to see answer by cartert(27)

Question 178436: In Triangle abc , angle a is 5 times angle b, and angle c is 16 degrees less than angle b. What are the measures of the three angles?
Click here to see answer by Mathtut(3670)

Question 178376: In triangle ABC, linr CD is both the median and the altitude to side AB. If AB=5x+3, AC=2x=8, and BC=3x+5, what is the perimeter of triangle ABC?
Click here to see answer by ankor@dixie-net.com(15746)

Question 178654:
Click here to see answer by Mathtut(3670)

Question 179395: if an a-frame house is 45 feet high and 32 feet wide, what is the measure of the angle that the roof makes with the floor?
Click here to see answer by josmiceli(9817)

Question 179395: if an a-frame house is 45 feet high and 32 feet wide, what is the measure of the angle that the roof makes with the floor?
Click here to see answer by Fombitz(13828)

Question 179412: one angle of a triangle is 30 degrees larger than the smallest angle, and the third angle is four times as large as the smallest angle. find the angle of the smallest angle
Click here to see answer by nerdybill(7009)

Question 179556: Hi in math class we are doing stuff with triangles. Here is my word problem: Scott wants to swim across a river that is 400 meters wide. He begins swimming perpendicular to the shore he started from but ends up 100 meters down river from where he started because of the current. How far did he actually swim from his starting point?
Thank you so much!
Click here to see answer by stanbon(57982)

Question 179555: Hi. In math class we are doing word problems with right triangles. Here is the problem: Suppose a roller coaster's height is 105 feet off the ground. The distance on the ground from the start of the hill to the top of the hill is 200 feet. How fat do you actually travel on the roller coaster's track?
Click here to see answer by Earlsdon(6294)

Question 179756: How do you measure a base triangle? I'm helping my son and I've forgotten some steps. Triangle MNP (acute Isosceles) is shown on a protractor, where angle M (base angle) measures 70 degrees. How do I find out the measure of angle N (base angle)?
Click here to see answer by solver91311(17077)

Question 179758: I'm looking at an obtuse triangle (ACB) on a protractor. the measurement of angle A measures 110 degrees. Sides AB and AC are congruent. How do I find the measurement of angle B?
Click here to see answer by solver91311(17077)

Question 179729: Here is my question:
Triangle ABC has coordinates A(-3,0) B(0,3)and C(3,0). The number of sqaure unites in the area of ABC is :
1)6
2)9
3)12
4)18
(which of the above is the answer to the question?)
i would love if you help me find the answer.THANK you SOMUCH!
Click here to see answer by Mathtut(3670)

Question 179764: one angle of a triangle is 20 degrees., How large is the angle formed by the bisector of the other two angles?
Click here to see answer by Mathtut(3670)

Question 179764: one angle of a triangle is 20 degrees., How large is the angle formed by the bisector of the other two angles?
Click here to see answer by solver91311(17077)

Question 180087: an isosceles triangle has a perimeter of 82cm and the length of the legs are represented by (3x+2) and (5x-14). What is the length of the base of the triangle?
Click here to see answer by stanbon(57982)

Question 180168: 6.Is it possible to draw the following triangles ? If not explain why.
a) An obtuse scalene
b) An acute scalene
c) A right scalene
d) An obtuse equilateral

Click here to see answer by stanbon(57982)

Question 180170: 7.. Explain the difference between congruent and similar figures ?
Click here to see answer by eperette(173)

Question 180170: 7.. Explain the difference between congruent and similar figures ?
Click here to see answer by solver91311(17077)

Question 180167: 5. Classify the following as true or false. Explain why.
a) A ray has two endpoints.
b) A line segment contains an infinite number of points

Click here to see answer by stanbon(57982)

Question 180165: 4. Find the missing measure of each triangle.
A= 50, B= 70 c= ?

Click here to see answer by checkley77(12569)

Question 180206: 1. Can a triangle have two obtuse angles? Justify your answer
Click here to see answer by Fombitz(13828)

Question 180205: 3. If three lines all meet in a single point, how many pairs of vertical angles are formed ?
Click here to see answer by Fombitz(13828)

Question 180207: 2. Can a parallelogram have four right angles? Justify your answer
Click here to see answer by Mathtut(3670)

Question 180161: 1. Can a triangle have two obtuse angles? Justify your answer

Click here to see answer by Mathtut(3670)

Question 180798: The altitude of an equilateral triangle is 5.0cm. What is the lenght of a side?
Click here to see answer by user_dude2008(1861)

Question 180867: Ok, this deals with angles of elevation and deppression in triangles.
-A plane leaves a runway and rises to a height of 3078. At theat point it is 6000 feet from its point of take off. Find the angle of elevation form the plane to its take off.
I have so far figured out that is would use the SIN funtion and have set up the equation-
S
SIN x=3078/6000
but I am confused as to how to proceed to solve it?
Thanks

Click here to see answer by Alan3354(31537)

Question 180872: Ok this is a word prob....I am doing this for a honors Geometry class and we are studying trigonometry currently.
A person is on the top deck of a cruise ship and observes 2 fish following each other directly away from the ship in a straight line. His postition is 154 meters above sea level and the angles of depression to the 2 fish are 35 degrees and 36 degrees, respectivly. Find the distance between the 2 dolphins.
I have no clue how to begin...Thanks in advance for the help
Click here to see answer by cloudstrifeo0o(5)

Question 181101: Here is my question:
The height of a triangle is 4 2/3
The base of the triangle is 3/4
I need to find the area of the triangle. I have tried it, my mother has tried it, and my step-dad tried it.
Please help me.
Click here to see answer by Alan3354(31537)

Question 181099: ΔABC has a perimeter of 30. AB = 4x – 7, BC = 2x, and AC = 7. List the angles in order from least to greatest.
Click here to see answer by solver91311(17077)

Question 181181: Simply the following square root number 72? And it needs to be simplified not in a decimal number?
Click here to see answer by Mathtut(3670)

Question 181193: Simplify the square root of 54? And not in decimal form please?
Click here to see answer by Mathtut(3670)

Question 181187: Simplify the square root of 75? And not in decimal form please?
Click here to see answer by Mathtut(3670)

Question 181165: the altitude of an equilateral triangle is 12 centimeters. Find the perimeter of the triangle. Round to the nearest tenth.
Click here to see answer by HyperBrain(694)

Question 181568: The perimeter of a right triangle is 18. If the hypotenuse is 8, how many square units are in the area of the triangle? I know the formula for the area and the perimeter but don't know how to solve for this question with only knowing the hypotenuse.
Click here to see answer by josmiceli(9817)

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