8th Grade Math Unit 3 Review

Front

What formula is used to calculate the volume of a sphere?

Back

V = (4/3)πr³, where r is the radius of the sphere.

Front

What is the formula to find the distance between two points (J and K) in a coordinate plane?

Back

Distance = √((x2 - x1)² + (y2 - y1)²)

Front

What is the formula for the volume of a cylinder?

Back

V = πr²h, where r is the radius and h is the height.

Front

What is the diameter of a circle?

Back

The diameter is twice the radius of the circle.

Front

What is the formula for the volume of a cone?

Back

V = (1/3)πr²h, where r is the radius and h is the height.

Front

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

Back

The diameter is equal to 2 times the radius (d = 2r).

Front

What is the volume of a cylinder with a radius of 4.5 inches and a height of 32 inches?

Back

V = π(4.5)²(32) ≈ 636.17 cubic inches.

Front

What is the volume of a sphere with a radius of 3 inches?

Back

V = (4/3)π(3)³ ≈ 113.1 cubic inches.

Front

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

Back

SA = 4πr², where r is the radius.

Front

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

Back

SA = 2πrh + 2πr², where r is the radius and h is the height.