Review for Chapter 14 Test Surface Area & Volume (Math 8)

Front

What is surface area?

Back

The sum of all the areas of all the shapes that cover the surface of the object.

Front

What is volume?

Back

The amount of space inside a three-dimensional object.

Front

What is the formula for the volume of a cylinder?

Back

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

Front

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

Back

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

Front

How do you calculate the volume of a rectangular prism?

Back

Volume = length × width × height.

Front

What is the relationship between surface area and volume?

Back

Surface area measures the total area of the object's surface, while volume measures the space inside the object.

Front

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

Back

Approximately 3.14.

Front

How do you find the volume of a sphere?

Back

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

Front

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

Back

Surface Area = 4πr², where r is the radius.

Front

If a cylinder has a radius of 3 cm and a height of 5 cm, what is its volume using π = 3.14?

Back

Volume = 3.14 × 3² × 5 = 141.3 cm³.