Geometry Lesson 13.1 SA & LA

Front

What is the formula for the area of a base (B) of a cylinder?

Back

B = πr², where r is the radius of the base.

Front

What is the formula for the lateral area (LA) of a cylinder?

Back

LA = 2πrh, where r is the radius and h is the height.

Front

What is the formula for the total surface area (SA) of a cylinder?

Back

SA = 2πr² + 2πrh.

Front

What is the formula for the area of a base (B) of a cone?

Back

B = πr², where r is the radius of the base.

Front

What is the formula for the lateral area (LA) of a cone?

Back

LA = πrl, where l is the slant height.

Front

What is the formula for the total surface area (SA) of a cone?

Back

SA = πr² + πrl.

Front

What is the relationship between lateral area and total surface area?

Back

SA = LA + 2B for solids with two bases.

Front

How do you calculate the lateral area of a rectangular prism?

Back

LA = 2h(l + w), where h is height, l is length, and w is width.

Front

What is the formula for the total surface area of a rectangular prism?

Back

SA = 2lw + 2lh + 2wh.

Front

What is the significance of rounding answers in geometry problems?

Back

Rounding ensures answers are presented in a manageable format, especially for measurements.