Question

Find the unknown side length, x. Write your answer in simplest radical form.

A. 15
B. 11 square root 2
C. 2 square root 121
D. 15 square root 5

Answer 1

In the picture both of the triangles are congruent, meaning they will have equal sides and angles making them an equilateral triangle.

Answer 2

As you can see this triangles angles all measure 60 degrees because in a triangle all the angles have to equal out to 180 degrees..

Not we will cut this triangle in half to make the right angles and match bother of your triangles.

Answer 3

Now it is a 30-60-90 triangle.

Answer 4

To find the length of the hypotenuse, which is the longest side all you have to do it multiply the shortest side (11) by two and that will be the value of your hypotenuse.