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

B

Explanation:

Answer 2

We have two right isosceles triangles. Hypotenuse of that triangle is a
`√(2)` or you can use the Pythagorean theorem: 11² + 11² = c²
121 + 121 = c²
242 =c² c=
`√(242)= √(121*2)=11 √(2)` Answer is the same: B) 11 square root 2