Surface Area of Sphere

Front

What is the formula for the surface area of a sphere?

Back

SA = 4πr²

Front

What is the surface area of a sphere with a radius of 11 inches?

Back

484π in²

Front

What is the surface area of a sphere with a radius of 22 inches?

Back

1,936π in²

Front

How many radii are in a diameter?

Back

2

Front

If the surface area of a sphere is 396 ft², what is the radius?

Back

5.62 ft

Front

What does 'r' represent in the formula SA = 4πr²?

Back

'r' represents the radius of the sphere.

Front

What is the relationship between the radius and diameter of a sphere?

Back

The diameter is twice the radius.

Front

How do you calculate the surface area of a sphere?

Back

Use the formula SA = 4πr², where r is the radius.

Front

If the radius of a sphere is doubled, how does the surface area change?

Back

The surface area increases by a factor of 4.

Front

What is the unit of measurement for surface area?

Back

Square units (e.g., in², ft²).