8th Grade Volume and Surface Area Flashcardizz

Front

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

Back

Surface Area = 2πr(h + r), where r is the radius and h is the height.

Front

How do you calculate the volume of a sphere?

Back

Volume = (4/3)πr³, where r is the radius.

Front

What is the value of π (pi) used in calculations?

Back

π is approximately 3.14.

Front

What is the surface area of a sphere with a radius of 4 inches?

Back

Surface Area = 4πr² = 4 * 3.14 * (4)² = 201.06 in².

Front

If the diameter of a circle is 4, what is the radius?

Back

Radius = Diameter / 2 = 4 / 2 = 2.

Front

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

Back

Total Surface Area = 4πr².

Front

How do you find the surface area of a cylinder with a radius of 1 inch and height of 2 inches?

Back

Surface Area = 2πr(h + r) = 2 * 3.14 * 1 * (2 + 1) = 6.28 in².

Front

What is the volume of a sphere with a radius of 4 inches?

Back

Volume = (4/3)π(4)³ = 267.9 in³.

Front

What is the surface area of a sphere with a radius of 8 inches?

Back

Surface Area = 4π(8)² = 804.25 in².

Front

How do you convert diameter to radius?

Back

Radius = Diameter / 2.