Questions on Geometry: Triangles answered by real tutors!

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Question 407866: true or false:if the lef of a 30-60-90 trianlge is 25, the longer side is 50
Click here to see answer by Alan3354(69443)

Question 407961: the sides of a triangle measure 2,3, and 4. If the smallest side side of a similar triangle measures 8, then the measure of the largest side is?
Click here to see answer by Alan3354(69443)

Question 408115: an equilateral triangle has a perimeter of 12. what is the length of each side?
Click here to see answer by Alan3354(69443)

Question 408416: The vertices of angle ABC and A (-1, -2), B (-1,2), and C (6,0). Which conclusion can be made about the angles of angle ABC?
1. Measure of angle A = Measure of angle B
2. Measure of angle A = Measure of angle C
3. Measure of angle ACB = 90
4. Measure of angle ABC = 60
Click here to see answer by ewatrrr(24785)

Question 408616: if the cos A=8/17, then what would sin A and tan A be?
Click here to see answer by richard1234(7193)

Question 408568: The lengths of a triangle sides are 5 m, 5 m and 2 m. Calculate the area of the triangle. Give the answer in 0,1 m2 precision.
Is it 5.1 m^2??
Click here to see answer by richard1234(7193)

Question 409033: Please help me solve the following problem:
If one leg of a right triangle measures 8 feet and the the angle measures 30, what is the measure of the other leg?
The triangle looks like this:
30 degrees
--/!
-/-!x feet
/_!
8 feet
THANK YOU!!! =)
Click here to see answer by checkley79(3341)

Question 409205: Hello,
We are learning about similar triangles.
Here is the question:
If MNPQ is a parallelogram, find RN, RP, and SP.
The answer the book says is that the triangles QSM~PSR~NMR are similar b/c of the Angle Angle Similarity rule (RN=33.3, RP=13.3, SP=20). Which 2 angles are similar?
Thanks.

Click here to see answer by rfer(16322)

Question 409492: how many times does the volume of sphere becomes if radius is made
(1)Doubled (2)Half
Click here to see answer by ewatrrr(24785)

Question 409493: Radius of a sphere is r.how many times does the area increases if radius is doubled?
Click here to see answer by stanbon(75887)

Question 409486: A right triangle has sides a, b, and c. If the length of side c is 13 cm and the length of side a is 5 cm, what will be the length of side b?
Click here to see answer by Alan3354(69443)

Question 409590: the perimeter of an equilateral triangle is 32 centimeters. find the length of an altitude of the triangleto the nearest tenth of a centimeter.
Click here to see answer by MathLover1(20849)

Question 409603: Here is my problem:
A piece of art is in the shape of an equilateral triangle with the sides of 7 in. Find the area of the piece of art. Round your answer to the nearest tenth.
Click here to see answer by nerdybill(7384)

Question 409753: for getting the area of a triangle do you multiply each number and then divide by the number 2?
Click here to see answer by tiannababycakes(2)

Question 409753: for getting the area of a triangle do you multiply each number and then divide by the number 2?
Click here to see answer by richard1234(7193)

Question 409764: If one angle on a equilateral triangle is 12x then what is x?
Click here to see answer by richard1234(7193)

Question 409638: A Triangle Has Measuring 55 Degrees And 25 Degrees. What Is The Measure Of The Triangle's Third Angle?
Click here to see answer by richard1234(7193)

Question 409787: If two angles on a isosceles triangle are 5x-13 and 3x+3 then what are the degrees and x?
Click here to see answer by richard1234(7193)

Question 410219: If you only have the points of a right triangle, how do u get the legs? For example the points 6,6 and 6,3 and 1,3?
Click here to see answer by solver91311(24713)

Question 410257: How do you find the area of a triangle with only having the measurments of the hypotenuse and one leg?
Click here to see answer by armstrkl(28)

Question 410257: How do you find the area of a triangle with only having the measurments of the hypotenuse and one leg?
Click here to see answer by rfer(16322)

Question 410317: What formula should I use to find the answer to this problem: The base of a 22ft ladder is 8ft from a house. Approximately how far above the ground is the top of the ladder? I drew it and saw that it formed a triangle, but I am not sure if I am supposed to be finding the other side or when I do should I subtract it from 22.
Click here to see answer by josmiceli(19441)

Question 410352: if a triangle has 2 angles and one of them measures 45 degrees and the other one measuring 61 degrees what does the third angle measure?
Click here to see answer by rfer(16322)

Question 410380: We are learning about similar triangles (AA, SSS & SAS) and
I am stuck on the following problem:
If EF || AB, AD=9, DB=16, EC=2(AE), find AE, AC, CF, CB, CD, and EF.
(the book says the answers are: 5, 15, 13.3, 20, 12 and 16.6 - but I am not sure how)
Can someone help?
Thanks.

Click here to see answer by scott8148(6628)

Question 410488: how does sin B = 0.6608 get transfromed into B = 41Degrees what step am i missing from changing 0.6608 to an angle (arrgggg)
using law of sines
when 33/SIN 57 degree = 26/ SIN B
next step is
33sinB = 26sin57degree
next step
sin B = 26sin57degree/33 =0.6608
sin B = 0.6608
what do i do to get this
then B = 41 degree (it all checks on a caulator) how do I get that SIN B = 0.6608 to = 41 degrees into an angle of a triangle

how do you change that to this B = 41degree
what am i missing (aaarrrrrggh)
Click here to see answer by Theo(13342)

Question 410844: what is the area if the hight is 4 inches and the base is 7 inches

Click here to see answer by richard1234(7193)

Question 410877: why cant a triangle have more than one altitude
Click here to see answer by Alan3354(69443)

Question 410904: Hello, there and thank you so much for helping me tongight!
my question today, is on special triangles. This is how my question goes:
it is a 45-45-90 triangle
i need to find the value of each variable
hypotenuse= b
one leg= 7
and shortest leg =a
i am sooo lost and thank you soo much!
Click here to see answer by josmiceli(19441)

Question 410922: hello there, and thank you very much for all your help!
my question tonight is:
i have a 30-60-90 triangle
shortest leg:a
other leg:b
hypotenuse: 8
find the value of each variable
thanks a lotttttt! :D
Click here to see answer by richard1234(7193)

Question 411112: A right triangle has one 27� angle. Find the other two angles. (Enter solutions from smallest to largest.)

Click here to see answer by Alan3354(69443)

Question 411076: 1.) If a triangle has sides of lengths 5, 12, and 13, is the triangle right?
2.) Refer to right triangle ACB. If BC = 5 and AB = 6, what is AC in simplified form?
3.) Refer to Triangle DFE. If DM = 4 and ME = 9, what is FM in simplified form?
4.) Refer to Triangle DFE. If DM = 6 and DE = 18, what is FM in simplified form?

5.) Refer to right triangle ACB. If AC = 6 and BC = 8, what is AB in simplified form?

6.) Refer to right triangle ACB. If AC = 4 and AB = 5, what is BC in simplified form?
Click here to see answer by richard1234(7193)

Question 411109: on a right triangle if a=4 and c=2radical13 what is b?
Click here to see answer by rfadrogane(214)

Question 411412: how do you find the area of a right triangle if you only know the length of the hypotenuse (6)and the perimeter (14)
Click here to see answer by stanbon(75887)

Question 411721: if a gate is 24 inches wide by 46 inches high what are the angles at the angle brace from corner to corner
Click here to see answer by MathLover1(20849)

Question 411822: if one leg of a right triangle is 12 and the other leg is 16. What is length of the hypotenuse of this right triangle?
Click here to see answer by rfer(16322)

Question 412141: The lengths of two sides of a triangle are 5 and 12, the lengths of all three sides are integers, what is the shortest length the third side could be
Click here to see answer by Alan3354(69443)

Question 412421: IF ONE SIDE IS 66 AND THE OTHER IS 80 WHAT IS THE MEASUREMENT OF THE THIRD SIDE?

Click here to see answer by 7asho0m(2)

Question 412327: the lengths of the sides of a triangle are 6,7,and 8. what is the length of the longest side of a similar triangle whose shortest side has a length of 9?
Click here to see answer by ewatrrr(24785)

Question 412526: i wanna know how to do a right triangle when doing triangles

Click here to see answer by solver91311(24713)

Question 412825: The diagonal of a square is 12 inches long. Find the length of one of the legs.
Click here to see answer by edjones(8007)

Question 413136: I'm given a right triangle. The hypotenuse of the triangle is labeled y and one leg is labeled x. I'm given one side it's 7 radical 3. I'm told to find x and y.
I have no idea what to do.
Click here to see answer by ewatrrr(24785)

Question 413128: Prove that the sum of distances from any point in the interior of a triangle to the three vertices a, b, and c is greater than half the perimeter of the triangle.
Click here to see answer by richard1234(7193)

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