Composite Figures and Area Calculations

In this video, the teacher explains how to calculate the area of composite figures, which are geometric shapes made up 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 that is always circular

• A figure made of two or more different shapes

• A figure made of only one shape

• A figure with no defined shape

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?

• πd

• πr²

• πr²/2

• 2πr

If the diameter of a half-circle is 18 feet, what is the radius?

• 27 feet

• 18 feet

• 36 feet

• 9 feet

What is the total area of a composite figure made of a rectangle (576 sq ft) and a half-circle (127.17 sq ft)?

• 450 sq ft

• 703.17 sq ft

• 800 sq ft

• 600 sq ft

How do you calculate the area of a triangle?

• Base plus height

• Base times height divided by 2

• Base minus height

• Base times height

What is the area of a rectangle with a length of 10 meters and a width of 8 meters?

• 28 sq meters

• 100 sq meters

• 80 sq meters

• 18 sq meters

If a triangle has a base of 8 meters and a height of 6 meters, what is its area?

• 12 sq meters

• 24 sq meters

• 48 sq meters

• 36 sq meters

What is the total area of a composite figure made of a rectangle (80 sq meters) and a triangle (24 sq meters)?

• 80 sq meters

• 120 sq meters

• 100 sq meters

• 104 sq meters

What should you do if you enjoyed the video?

• Ignore it

• Like and subscribe

• Dislike it

• Report it