Question

What is the diameter or the radius?

Please help

Answer 1

Radius, Diameter and Circumference

The Radius is the distance from the center outwards. The Diameter goes straight across the circle, through the center. The Circumference is the distance once around the circle.

:)

Answer 2

Radius = 8.7 cm

Explanation:

The height and hypotenuse of the triangle is provided, so all we have to do is use the Pythagorean Theorem.
`\sqrt{15^(2)-12.2^(2)}` and this yields the answer.