Questions on Geometry: Triangles answered by real tutors!

Tutors Answer Your Questions about Triangles (FREE)

Question 630756: The angles of a triangle are 30, 70 & 80 degrees.
The perimeter is 12 units.
What are the sides?

Click here to see answer by dfrazzetto(277)

Question 630780: in a 45 degree - 45 degree-90 degree triangle, what would be the length of the other two sides if the the longest side is 10?
Click here to see answer by reviewermath(524)

Question 631368: Please help me solve this equation:
Triangle ABC is isosceles with AC = BC. If AC = 3x + 8, BC = 5x - 4, and AB = 2x + 4, find the perimeter of the triangle.
I have tried solving this by myself already by solving for x and then substituting it, but the answers I get are not equal. It says that AC and BC are supposed to be congruent, but my answers are very far from each other. However, I think I got the formula for this correctly. Since it isn't a regular polygon, the formula for the perimeter is the two sides + the base, right? Please correct me if I'm wrong.
Click here to see answer by richwmiller(9135)

Question 631508: classify a triangle with sides 18 18 18
Click here to see answer by jim_thompson5910(28595)

Question 631648: The sides of an isosceles triangle are 23,23, and 22cm long. What is the area of the triangle?
Do not round any intermediate computations, and round your answer to the nearest tenth.
Click here to see answer by reviewermath(524)

Question 631918: Find the perimeter of a right triangle with legs measuring 7 and 24.
Click here to see answer by benni1013(197)

Question 631756: The measure of the angles of a triangle are 4x-1, 9x+1, and 5x. The triangle is?
Click here to see answer by benni1013(197)

Question 631968: show me a obtuse triangle
Click here to see answer by lenny460(770)

Question 632305: the points A(1,5),B(4,-1),C(-2,-4) forms a triangle ABC.Prove that the triangle is right angled and find the area.....plezz help me..........

Click here to see answer by reviewermath(524)

Question 632697: The perimeter of a triangle is 25 inches. If side a is twice side b, which is half side c, what is the length of side b? Which is half of side c, side a or side b?
Click here to see answer by dfrazzetto(277)

Question 632700: Look at this series: 1, 7/8, 3/4, 5/8. What number should come next?
Click here to see answer by dfrazzetto(277)

Question 632601: what kind of angle pair are the acute angles of a right triangle?
What is the measuire of the smallest angle in an isosceles right triangle?
The ratio of the angles of a triangle is 1:2:3.What are the measures of the angles ?
Click here to see answer by KMST(1868)

Question 633303: write an equation for the perimeter p of an equilateral triangle whose sides each measure c centimeter.
Click here to see answer by solver91311(16885)

Question 633309: how do you solve for x when the area of the triangle is 10cm2, also it is a isosceles
Click here to see answer by solver91311(16885)

Question 633330: "Find the area of a triangle with side lengths 18 and 20 and included angle 6 degree."
Click here to see answer by Alan3354(30993)

Question 633330: "Find the area of a triangle with side lengths 18 and 20 and included angle 6 degree."
Click here to see answer by MathTherapy(1424)

Question 633441: A ski run must not exceed a slope of -3/5 due to safety concerns. What is the maximum elevation drop (in yards) if the run is to be 4000 yards long?
Click here to see answer by stanbon(57347)

Question 633502: Tom drops a rock off the edge of a 324 foot cliff. The height of the rock after t seconds is given by h = -16t2 + 324. How long until the rock hits the ground below? Round your answer to the nearest tenth of a second.

Click here to see answer by Alan3354(30993)

Question 633814: find the area of a triangle with a base of 12meters and an altitude of 14meters
Click here to see answer by solver91311(16885)

Question 633876: If DC=12 cm and AD=3 cm, then BD=___.

Click here to see answer by richwmiller(9135)

Question 634189: the area of the triangle is 10cm^2,and the base is x+2, and the height is x+1, solve for x
Click here to see answer by richwmiller(9135)

Question 634219: Two sides of a right triangle are 2 square root 2, and 3. (neither the hypotenuse)
What is the measurement of the hypotenuse?
Click here to see answer by ihelpw/trig(1)

Question 633396: What is the area of a right triangle with a hypotenuse measuring 5 inches and a base measuring 4 inches?

Click here to see answer by bucky(2189)

Question 634484: From the markings shown on the following triangle, which of the following statements is true
Click here to see answer by jim_thompson5910(28595)

Question 634532: How can I input pics of triangles?
I'm not able to copy jpegs into the question box?
Click here to see answer by jim_thompson5910(28595)

Question 634680: The longest side of a right triangle is 50m in length. One of the other sides is 34m longer than the shortest side. Find the lengths of the two shorter sides of the triangle.
Click here to see answer by Alan3354(30993)

Question 634712: The legs of an isosceles right triangle are 17 cm long. Find the length of the hypotenuse. Round to the nearest tenth if necessary.

Click here to see answer by jim_thompson5910(28595)

Question 635207: find the area of a triangle that has a base of 2 1/4 yards and height of 4/5 yard.
Click here to see answer by ewatrrr(10682)

Question 635190: I was asked to calculate the area of a rhombus split into two triangles. The triangles were equilateral and it gave me two sides that were both 6. I understand I can use Heron's formula for this, but I came across a part in this certain problem I didn't understand. So, first I do S=one-half (6+6+6). It is 9. Then, you do s(9-6)(9-6)(9-6) and square it. They put the answer as 9 and a squared 3 where its under the little house thing. How did they get from 9(3)(3)(3)squared to that?!
Click here to see answer by solver91311(16885)

Question 635240: Please help me. The perimeter of a triangle is 90 cm

The lengths of the sides of the triangle
are in the ratios 3 : 5 : 7

Work out the length of the longest side
of the triangle.
Click here to see answer by ewatrrr(10682)

Question 635262: What is the length of AC in triangle ABC, < B =< C and the perimeter of the triangle is 60 ..I am not sure how to even start the equation I learned this material almost 2 years ago and forgot how to do this
Click here to see answer by richwmiller(9135)

Question 635534: How mant sides does a right triangle have?
Click here to see answer by Alan3354(30993)

Question 635678: What is the formula for? Find the length of the equal sides of a right-angled isosceles triangle if the length of its hypotenuse is 40cm.
Click here to see answer by reviewermath(524)

Question 635732: .What best describes the triangle whose corners are located at the points (1, 1), (2, 2), and (0, 16)?
A. It is isosceles.
B. It is a right triangle.
C. It has area 22 square units.
D. None of the above

Click here to see answer by jsmallt9(3296)

Question 635969: The third side of a triangle is 4 inches longer than the shortest side and 2 inches smaller than the longest side. If the perimeter of the triangle is 31 inches, what is the length of each side?
Click here to see answer by sachi(392)

Question 635913: Two hemispheres have volumes in the ratio a^2/b^3. What is the ratio of their surface areas?
Click here to see answer by sachi(392)

Question 636139: Hello im a bit itchy about this question : Three sides of a triangle are are 2, 4, and 5. the two smallest size of a similar triangle are 6 and 12. find the measure of the missing side.
Do I just do this: 6^2+12^2= c^2 and solve? But then what was the point of the other triangle and it's side?
Thanks~

Click here to see answer by ewatrrr(10682)

Question 636157: WHAT IS THE VALUE OF THE BISECTOR J WHEN THE HYPOTENUSE = 12 AND THE BASE IS 6?
Click here to see answer by solver91311(16885)

Question 636307: What is the surface area of the following rectangular prism? Express your answer in square inches.
3ft 6in and 8in
Click here to see answer by ewatrrr(10682)

Question 636583: I am going to put blocks under the head of my bed to raise it. I need to know how high a second set of legs need to be. In reference to the triangle, the length of the bottom is 71". The right side (at at 90 degree angle) is 3.5" tall. How high is the top side of the triangle 14" in from the right side. (I am guessing maybe 2", but would like confirmation.) Thanks.
Click here to see answer by Alan3354(30993)

Question 637005: the hypotenuse of a right triangle exceeds the length of one leg by 1 and is 3less than 4 times the length of the other leg. determine the length of each leg of the right triangle

Click here to see answer by ewatrrr(10682)

Question 637080: A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at points B and C, as shown below.

Click here to see answer by solver91311(16885)

Question 637454: The perimeter of equalateral triangle ABC is 54. Median AM is drawn to side BC. If BM = 4x-31, find x.
Click here to see answer by ewatrrr(10682)

Question 637457: if i have a right triangle with one side of 12 and and another side of 33, the hypotenuse is 35.114. what are the other 2 angles beside the 90?
Click here to see answer by Alan3354(30993)

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