Questions on Geometry: Triangles answered by real tutors!

Tutors Answer Your Questions about Triangles (FREE)

Question 671885: In a 45-45-90 triangle, the length of the hypotenuse is 11. find the length of one of the legs.
Click here to see answer by rfer(16322)

Question 671964: if a triangle has the perimeter of 7 whats its base and height
Click here to see answer by Alan3354(69443)

Question 672315: ABC has vertices A(�2, 4), B(6, 0), and C(�4, 0). Is ABC a right triangle?
Click here to see answer by sachi(548)

Question 672315: ABC has vertices A(�2, 4), B(6, 0), and C(�4, 0). Is ABC a right triangle?
Click here to see answer by ewatrrr(24785)

Question 672313: the areas of similar triangles are 25 and 16. The perimeter oh the first is 15, find the second perimeter.
I am confused on how to solve this. Every time I get some weird number that isn't the answer.
Click here to see answer by sachi(548)

Question 672377: how many us gallons are there in an olympic size swimming pool 1ftsqauared=7.481gallons

Click here to see answer by Alan3354(69443)

Question 672463: A 20 foot ladder is leaned up against a wall with its foot 6 feet away from the wall. A man stands on a rung 12 feet from the bottom of the ladder. How far is the man from the wall and the ground?
how do I this?
Click here to see answer by DrBeeee(684)

Question 672507: the lengths of 2 sides of a triangle are 9 and 5. suppose the length of the 3rd side is an integer. Give all the possible lengths for the 3rd side.
thanks! :)
Click here to see answer by stanbon(75887)

Question 672801: The base of a triangle is decreased by 20%. How much must you increase the height to keep the area of the triangle the same? Express your answer as a percent.
Click here to see answer by stanbon(75887)

Question 673252: what are my dimensions for a 90 degree triangle with a length of 11' 8"

Click here to see answer by stanbon(75887)

Question 673285: Find the Hypotenuse of a right triangle whose legs are (a) 3, 4 (b) 5, 12 (c) 6, 8: (d) 7, 24 (e) 8, 15.
What do I do?
Click here to see answer by edjones(8007)

Question 673545: If there is an equilateral triangle with one side being 3x+1 and the other being 2x+5 what is the length of the missing side?
Can you please explain how you got the answer because I have a quiz tomorrow and I am still very confused!
Click here to see answer by jim_thompson5910(35256)

Question 673771: A triangle has a side that is 55 inches, 37 inches and 1.5 feet. What is the area of a triangle in aquare centimeters?
Click here to see answer by Shana-D77(132)

Question 673971: You are asked to put a V-shaped roof on a house. The slope of the roof is 40 degrees. What is the measure of the angle needed at the vertex of the roof?
There was two questions before this with bold lettering that said:
Use the properties of isosceles triangles to complete each statement.
I don't know if you use that for the question I asked, but I think it goes with it.
Thanks so much for any help, I really appreciate it!!
Click here to see answer by stanbon(75887)

Question 673974: Hi I need help on how to find the perimeter of a triangle when two angles are congruent and it includes exponents, so for triangle DEF angles D and F are congruent, DE= 10x^2-100 EF= 5x^2+40x and DF=15x. Thank you!
Click here to see answer by Theo(13342)

Question 674200: The sides of a triangle are x cm, (x - 4) and (x + 2) cm long respectively. If the permeter is 46cm, find the lenght of each side.
Click here to see answer by jim_thompson5910(35256)

Question 674365: I am building a garden box in an Isosceles triangle shape.
The legs are 8 ft long, I don't know how to find the base length.
can you please help.
thank you.

Click here to see answer by Theo(13342)

Question 674343: how do I find the area of an iscoseles triangle when I've only been given the measurements of two sides using the sine rule: 1/2(ab)sinC
Click here to see answer by Theo(13342)

Question 674487: If the legs of an isosceles triangle are 6 inches long, how long will the base have to be? The height?
Click here to see answer by solver91311(24713)

Question 674655: What is (1234872938475982081987239487594086265871623841-9587897502897450294875938745937459387459879384798572987348729387492873492739482783479)divided by 283947289379850 then multiply it's quotient? (This question is soooo hard!)
Click here to see answer by solver91311(24713)

Question 674661: please help me with this question? sketch the right triangle and find the length of the side not given. if necessary, approximate the length to the nearest thousandth. leg=37,leg=28 what is the length of the side not given
Click here to see answer by solver91311(24713)

Question 674652: What is the number of square units in the area of a triangle whose sides are 5, 6 and √61. Explain answers in simplest form. (I think it's 21, but i think it's wrong.)
Click here to see answer by Edwin McCravy(20054)

Question 674730: The lenghts of the legs of an isosceles triangle are 8 inches. What could be the lenght of the base? 15 inches? 17 inches? 16 inches? or 20 inches?
Click here to see answer by solver91311(24713)

Question 675078: Find the length of the hypotenuse of this triangle. one side 21 and the bottom 28 what is the hypotenus for the other side

Click here to see answer by lynnlo(4176)

Question 675057: X, Y, Z are midpoint of sides ab, bc and ac. The perimeter of Xyz is 23. What is the perimeter of ABC?
Click here to see answer by sachi(548)

Question 675162: show that a triangle with vertices (5,-3) (2,-6) and (1,1) is a right angled triangle. Find the area.
Click here to see answer by MathLover1(20849)

Question 675242: Using the Pythagorean theorem lengths to a decimal, find the length of each hypotenuse. Write the length of each hypotenuse using radicals (i.e. n square route of x)
a= 6in b=9in
Click here to see answer by ReadingBoosters(3246)

Question 675294: In a triangle the lengths of the sides are 5 ft, 11 ft, and 13 ft. Is this a right triangle?
Click here to see answer by sachi(548)

Question 675333: Find the radius of a spherical tank that has a volume of cubic meters
Click here to see answer by ewatrrr(24785)

Question 675336: The denominator of a certain fraction is three times the numerator. If 2 is added to the numerator and subtracted from the denominator, the result equals 3/5. Find the original fraction
Click here to see answer by MathLover1(20849)

Question 675649: The base of an isosceles triangle and the altitude drawn from one of the congruent sides are equal to 18 cm and 16 cm, respectively. Find the lengths of the sides of the triangle.
Help me please. I can't understand. I tried everything but I cant. Help me please. :(
Click here to see answer by MathLover1(20849)

Question 675781: The angles of a triangle are (x -20)�, 50� and (2x + 30)�. Find the magnitude of each angle given the sum of the angles of a triangle is 180�.
Click here to see answer by stanbon(75887)

Question 675785: The sides of a triangle are x cm, (x-4) cm and (2x+5) cm long respectively. If its perimeter is 25cm, find the lenght of each side.
Click here to see answer by unlockmath(1688)

Question 675044: a triangle has a base of x+6, and a height of 2x+3. what is the area of the triangle?
Click here to see answer by ReadingBoosters(3246)

Question 676168: What is the 3rd side of triangle if side 1 is 11 ft and side 2 is 9 ft?

Click here to see answer by cs1998(1)

Question 676178: how do you find the length of a triangle side if you have the height, 24 feet, and the angle is 18 degrees?
Click here to see answer by solver91311(24713)

Question 676256: if line ab is congruent to line ac , what do you know about angle b and angle c
Click here to see answer by solver91311(24713)

Question 676428: A triangle has a area of 270 with a base of x+7 and a height of x, find x?
Click here to see answer by ReadingBoosters(3246)

Question 676470: leg xy of the right triangle in the diagram is twice as long as leg yz
if the area is 36cm2 ..what is the length in cm of leg xy
Click here to see answer by sachi(548)

Question 676463: a triangle has 63 and 30 angles.what is the measure of the third angle?is it acute,right,or obtuse?
Click here to see answer by jpvn2015(54)

Question 676502: The sides of a triangle are 8,15,and18.the shortest side of a similar triangles is 10.How long are the other sides?
Click here to see answer by edjones(8007)

Question 676720: How do I work and solve the question?
The smallest angle in a triangle is 1/3 as large as the largest angle. The third angle is twice the smallest and. Find the three angles.
Click here to see answer by rfer(16322)

Question 677217: How can I prove that a triangle cannot have two right angles?
Click here to see answer by jim_thompson5910(35256)

Question 677322: How do I sketch an isosceles right triangle CAR with
Click here to see answer by KMST(5328)

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