Question

PLEASE HELP WILL GIVE 100 POINTS!!

Find the unknown side length, x. Write your answer in simplest radical form.
A. 4
B. √65
G. 11
D. 5/13

Answer 1

Answer: B √65

Explanation:

The triangle on the right is a 3-4-5 right triangle. Common triangle. You can use Pythagorean to solve for the 4

To find x your triangle is 4-7-x

Use Pythagorean to solve for x(hypotenuse)

x²=4²+7²

x² = 16 +49

x² = 65 >take square root of both sides

x = √65 >this cannot be simplified any further

Answer 2

The answer is B. 8.0622577 or sqrt(65)