Questions on Geometry: Triangles answered by real tutors!

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Question 546551: an equilateral triangle has a perimeter of 42 centimetres how long is each side

Click here to see answer by mananth(16946)

Question 546969: Find the area of a triangle with sides 5, 8, 10. No decimals. Exact answer with a radical but no trigonometric functions.

Click here to see answer by Alan3354(69443)

Question 546959: Can the base of an isosceles triangle be shorter than the leg of the triangle?
Please explain why. Need to know for Finals!
Thanks

Click here to see answer by AnlytcPhil(1806)

Question 547097: The shorter leg of a right triangle is 17cm less than the longer leg.. If the hypotenuse is 25ch long,find the perimeter of the triangle
Click here to see answer by nerdybill(7384)

Question 547124: Can a triangl be formed having the lengths 3.2, 4.9 and 8.1?
Click here to see answer by JBarnum(2146)

Question 547125: the lengths of two sides of a triangle are 13 and 8. the length of the 3rd side must be greater than what but less than what?
Click here to see answer by KMST(5328)

Question 547202: Is it possible to make a triangle with side lengths 5, 7, 8?
Click here to see answer by Edwin McCravy(20054)

Question 547106: Abigail wishes to get the perimeter of a right triangular park. By looking at the park's map,she saw that the longer leg of the map measures 450m and makes 30 degree angle with the hypotenuse. Find the park's perimeter
Click here to see answer by ankor@dixie-net.com(22740)

Question 547388: 4.If the measures of two of the angles of a triangle are 42� and 48�, which of the following words best describes this triangle?
A. right
B. acute
C. obtuse
D. cannot be determined

Click here to see answer by stanbon(75887)

Question 547410: matt was told to draw an isosceles right triangle on his paper. He drew a triangle with the following angle measures. 90 degrees, 44 degress, and 46 degrees. Did he do it correctly?________
Why or why not?_________________________
Click here to see answer by Mathwiz6(3)

Question 547635: What is the measure of a base angle of an isosceles triangle if its vertex angle measures 65�?
Click here to see answer by stanbon(75887)

Question 547630: the height of a triangle is 5cm more than three times the base. if the area of the triangle is 6cm^2, what is the base.
A=6cm^2
h=3b+5cm
b=?
6cm^2=(1/2) x b x (3b+5cm)
I keep getting stuck at: 12cm^2 = 3b^2 + (5cm x b)
Per the answer key, the answer is b= (4/3)cm but I am unable to get to the answer from the question, nor the question from the answer as I always get stuck in the same place
Click here to see answer by ankor@dixie-net.com(22740)

Question 547794: leg of an isosceles right triangle when the hypotenuse is 18 centimeters long?
Click here to see answer by JBarnum(2146)

Question 547858: One angle of a triangle is 90 degrees.If the ratio of the legs is 1:1, what are the measures (in degrees) of the two remaining angles?

Click here to see answer by solver91311(24713)

Question 547349: In an equilateral triangle is it possible for the sum of the measures of the altitudes of the triangle be larger than perimeter of the triangle?
Click here to see answer by richard1234(7193)

Question 547455: How do you find the area of an equilateral triangle if you only are given the height? The height for my problem is given as 8.
Thank you
Note: I know the area of a triangle is 1/2*Base*height.
Click here to see answer by richard1234(7193)

Question 548027: How do I find the area of a triangle with only the base given?
Click here to see answer by Alan3354(69443)

Question 548210: If triangle has a base 14 cm long and an altitude 8 cm long. What is the area of the triangle?
Click here to see answer by mathie123(224)

Question 548013: The figure below is an isosceles triangle. The altitude is 5 inches and the congruent sides are 8 inches. Find the length of the base to the nearest tenth of an inch. Show all work and explanations.
I really dont understand this please help!
Click here to see answer by ankor@dixie-net.com(22740)

Question 548260: is it possible to have a triangles with sides of 3,4 and 5 inches long
Click here to see answer by solver91311(24713)

Question 548260: is it possible to have a triangles with sides of 3,4 and 5 inches long
Click here to see answer by josmiceli(19441)

Question 548338: Can you help me solve
Click here to see answer by mananth(16946)

Question 548354: what is the measure of the vertex angle of an isosceles triangle if one isosceles triangle if one of its base angles measures 70 degrees and its congruent sides each measure 15 cm?
Click here to see answer by Alan3354(69443)

Question 548364: If a right angle triangle has a perpendicular of 50 cm and a top angle of 45 degrees to the Hyponeneuse, can I calculate the length of the other side (NOT the hypoteneuse)? What length would that be?
Click here to see answer by mananth(16946)

Question 548367: how to draw 57.5 degree angle without protector
Click here to see answer by Alan3354(69443)

Question 548410: how do you find the base of a triangle when you have the height and area??
the height is 15in.
the area is 120in squared

Click here to see answer by Earlsdon(6294)

Question 548540: triangle PQR, with P=(3,6), Q=(4,1), R=(14,3), find the measure of the largest angle of the triangle PQR.

Click here to see answer by Edwin McCravy(20054)

Question 548561: At a point on the ground 50 meters from the foot of a tree the measure of the angle of elevation of the top of the tree is 48 degrees. Find the height of the tree to the nearest meter.

Click here to see answer by mananth(16946)

Question 548624: The hypotenuse of a right triangle is 12 inches and one of its legs is 7 inches What is the length of the other leg? Please help me.
Click here to see answer by mananth(16946)

Question 548679: this was on my home work
jason,kevin,and randy found themselves far apart when they stoped for lunch while working in a field.jason could see kevin,then turn through 75degrees and see randy.kevin could see randy,the turn 50 degrees and see jason.randy could see jason,then turn through 55 degree and see kevin.which two were farthest apart ?
a: kevin and randy
B: jason and kevin
C:randy and jason
D: kevin and randy were the same distance apart as randy and jason

Click here to see answer by stanbon(75887)

Question 548756: The altitudes of an acute triangle ____?____ intersect outside the triangle?

A.Always
B.Sometimes
C.Never
Click here to see answer by asuar010(338)

Question 548754: The median to any side of an equilateral triangle is _____?_____ the angle bisector?

A.Always
B.Sometimes
C.Never
Click here to see answer by Edwin McCravy(20054)

Question 548921: If there's an isosceles triangle and the hypotenuse is 12, what are the lengths of the two sides? & How do you figure it out?
Click here to see answer by stanbon(75887)

Question 548959: Find each base angle of an isosceles triangle if the vertex angle is 46
Click here to see answer by stanbon(75887)

Question 549020: is it possible to have a triangle with side lengths of 7,4 and 12 inches long?

Click here to see answer by solver91311(24713)

Question 549022: is it possible to have a triangles with side lengths of 12,12, and 12 inches long?
Click here to see answer by solver91311(24713)

Question 549040: What is the range of whole number measure of the third side of a triangle given the measure of 6 and 19
Click here to see answer by solver91311(24713)

Question 549056: The length of the base of an isosceles triangle is 10 meters less than twice the length of one of its legs. If the perimeter of the triangle is 50 meters, find the length of the base of the triangle.
Click here to see answer by lwsshak3(11628)

Question 549015: You are stationed at a radar base and you observe an unidentified airplane at an alititude of 6000 meters. The plane is flying towards the radar base at an angle of elevation of 30 degrees. After exactly one minute, the radar sweep reveals that the plane is now at an angle of elevation of 60 degrees and it is maintaining the same altitude. What is the speed of the plane in meters per second?
Click here to see answer by ankor@dixie-net.com(22740)

Question 549170: angle ABC has vertices A(4,4), B(-1,4), and C(1,6). Find the orthocenter of angle ABC

Click here to see answer by KMST(5328)

Question 549199: which triplet can not be the lengths of the 3 sides of a triangle and why?
a)22,16,13
b)9,9,11
C)6,7,9
D)22,8,12
Click here to see answer by mananth(16946)

Question 549011: An airplane is flying at an elevation of 12,000 feet before diving at an angle of depression of 45 degrees for 25 seconds. The plane is traveling at an average rate of 260 miles per hour during the dive. At what elevation does the plane end the dive?
Click here to see answer by ankor@dixie-net.com(22740)

Question 549287: Find the value of x on a triangle
Click here to see answer by mathie123(224)

Question 549348: how do you find the area of a triangle when one side { not the base} is 15 and its 72 degrees?
Click here to see answer by mathie123(224)

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