Question

Find x. Picture below

Answer 1

Use the Pythagorean theorem to find x.

a² + b² = c², where a and b are the legs and c is the hypotenuse.

Plug in 22 for a, x for b, and 25 for c.

22² + x² = 25²

484 + x² = 625

Subtract 484 from both sides.

x² = 141

Square root both sides.

x = √141