Find the unknown side length, x. Write your answer in simplest radical form. A. 4 B. Square root of 65 C. 11 D. 5 square root 13

Question

asked Mar 6, 2020 167k views

2 Answers

Techkuz · Answer 1 · 2020-03-11T23:26:29+0000

Answer:

x=√(65)

B is the correct option.

Explanation:

We'll use Pythagorean theorem to find the value of x.

In right angle ABC, applying Pythagorean theorem, we get

$BC=√(5^2-3^2)\\\\BC=√(16)\\\\BC=4$

Now, in right angle triangle CBD,

$x=√(7^2+4^2)\\\\x=√(49+16)\\\\x=√(65)$

B is the correct option.