Andres would like to paint the Styrofoam ball covered with a newspaper to create an Earth model for his science project. To determine how much paint he will need, he must measure the ball’s whole surface. Solve for the surface area of the Styrofoam ball. ( SA=4πr2 ), (π=3.14)
Answers & Comments
The surface area of the Styrofoam ball is approximately 1256.64 cm^2.
Step by step:
We need to know the radius of the Styrofoam ball in order to solve for the surface area. Let's assume that the radius is 10 cm.
SA = 4πr^2
SA = 4π(10 cm)^2
SA = 4π(100 cm^2)
SA = 400π cm^2
SA ≈ 1256.64 cm^2
Therefore, the surface area of the Styrofoam ball is approximately 1256.64 cm^2.