Composite Figures and Area Calculations

In this video, the teacher explains how to calculate the area of composite figures, which are geometric shapes composed of two or more different figures. The video covers two examples: one involving a rectangle and a half circle, and another involving a rectangle and a triangle. The teacher provides step-by-step instructions for calculating the area of each component shape and then summing them to find the total area of the composite figure. The video concludes with a brief promotion of the teacher's channel.

What is a composite figure?

• A figure made of only one shape

• A figure made of two or more different shapes

• A figure that is always circular

• A figure with no defined shape

What shapes make up the first composite figure discussed?

• A rectangle and a triangle

• A square and a circle

• A rectangle and a half-circle

• A triangle and a half-circle

How do you calculate the area of a rectangle?

• Length divided by width

• Length times width

• Length minus width

• Length plus width

What is the formula for the area of a half-circle?

• πr²

• 2πr

• πr²/2

• πd

What is the total area of the first composite figure?

• 703.17 square feet

• 127.17 square feet

• 600 square feet

• 576 square feet

What shapes make up the second composite figure?

• A rectangle and a triangle

• A rectangle and a half-circle

• A triangle and a half-circle

• A square and a circle

How do you calculate the area of a triangle?

• Base times height

• Base plus height

• Base minus height

• Base times height divided by 2

What is the area of the rectangle in the second composite figure?

• 100 square meters

• 80 square meters

• 90 square meters

• 60 square meters

What is the area of the triangle in the second composite figure?

• 20 square meters

• 24 square meters

• 30 square meters

• 18 square meters

What is the total area of the second composite figure?

• 80 square meters

• 104 square meters

• 90 square meters

• 120 square meters