Question

(86 Points!) Using the diagram below to answer the questions that follow.

a. Find the measure of the radius of the circle
b. Find the area of the circle.
C. Find the circumference of the circle.

(please show your work)

Answer 1

Radius = 10, Area is approximately 314.159 square units, Circumference is approximately 62.832 units

Explanation:

Radius:

sqrt( (-8 - (-16))^2 + (-6 - 0)^2 )

sqrt( (8)^2 + (-6)^2 )

sqrt( 64 + 36 )

sqrt( 100 )

10

Area:

pi * 10 * 10

100 * pi

approximately 314.159

Circumference:

2 * 10 * pi

20 * pi

approximately 62.832