Find the missing side b in a right triangle where a=8 and c=18

Using Pythagorean theorem c^2=a^2 + b^2, we can find the missing side b.

Put values in equation.

18^2 = 8^2 + b^2

324=64+b^2

Subtract 64 from both sides

260 = b^2

Take square root.

2√65=b

or

b=16.12

Answer: b=2√65 Radical form. or b=16.12 Decimal form.