Question

The center of the circle is (0,0). The circle passes through the point (8, -6) what is it’s radius?

Answer 1

The radius of the circle is 10

Explanation:

To calculate the radius of the circle we have to calculate the distance from point (0,0) to point (8, -6)

For this we have to use Pythagoras

h² = x² + y²

h² = (8 - 0)² + (-6 - 0)²

h² = (8)² + (-6)²

h² = 64 + 36

h = √100

h = 10

The radius of the circle is 10