Question

Find the surface area of the ball
shown. Use 3.14 for a.
Radius is 16 cm

Answer 1

Ball is sphere

• r=16cm

SurfAce area:-

• 4πr^2
• 4π(16)^2
• 4π(256)
• 1024πcm^2
• 3215.36cm^2

Answer 2

Formula

Surface area of a sphere:

`\sf SA=4\pi r^2` (where r is the radius)

Given information

`\pi` = 3.14

r = 16

Final solution

Substitute given values into the equation and solve:

`\sf \implies SA=4 \cdot 3.14 \cdot 16^2`

`\sf =3215.36 \ cm^2`