$\"\"$

The lengths of two sides of a right triangle are $\"\"$ . \ \

To find: hypotenuse c.

Apply Pythagorean theorem: $\"a$

$\"\"$ (Substitute 87 for a and 136 for b)

$\"\"$ (Evaluate powers: $\"\"$ ) $\"\"$

$\"\"$ (Add: $\"\"$ )

$\"\"$ (Take square root to each side)

$\"\"$ (Cancel sqaure and root)

$\"\"$ (Use a calculator to find $\"\"$ )

$\"\"$

The length of the hypotenuse is $\"\"$ .