Question

Find the radius y of circle C, given that x = 12 and z = y + 8.

Answer 1

Answer:

y = 5

Step-by-step explanation:

use Pythagorean theorem

                 z² = x² + y²

         (y + 8)² = 12² + y²

y² + 16y + 64 = 144 + y²

               16y = 80

                   y = 5