The measurement around the edge was 21.98 centimeters. What is the approximate area of the inside of the orange? (Use 3.14 for π)

Question

I need help cause I don't know how to do it

Answer 1

Hi Fredrinna ,

The measurement around the edge was 21.98 centimeters. What is the approximate area of the inside of the orange? (Use 3.14 for π)

Given:

1. An orange (Sphere)
2. measurement around the edge = 21.98 cm

Find: Approximate area inside the orange

Assumptions. (There seems to be information missing from the question)

1. The orange is a sphere,
2. The measurement of the edge is the distance around the sphere(Like at the equator)
3. The Area that it's asking about is the Surface Area of a sphere

Based on the above assumptions

Find the radius of the orange given the distance around (In 2D this would be the Circumference of a circle)

C=2πr = 21.98cm=2πr r=3.5cm

The Surface Area of a sphere = 4πr²

SA = 4 π (3.5)²

SA = 153.86 sq cm