Learn how to find the composition area of a figure

The video tutorial explains how to solve a composition area problem involving a half-circle and a triangle. It guides students through identifying whether to add or subtract areas, using the correct formulas, and calculating the areas of each shape. The tutorial emphasizes the importance of understanding geometric concepts and rounding the final answer appropriately.

What is the first step in solving a composition area problem involving multiple figures?

• Find the volume of the figures

• Identify the shapes involved

• Determine if areas should be added or subtracted

• Calculate the perimeter of each shape

How do you find the area of a half-circle if the diameter is given?

• Square the diameter and multiply by pi

• Use the diameter directly in the formula

• Multiply the diameter by pi

• Convert the diameter to radius and use the formula for a full circle, then divide by 2

What is the formula for the area of a triangle?

• 1/2 times base times height

• Base times height

• Base divided by height

• Base plus height

If the base of a triangle is 3 feet and the height is 7 feet, what is the area of the triangle?

• 10.5 square feet

• 7 square feet

• 21 square feet

• 14 square feet

After calculating the areas of individual shapes, what is the final step to find the area of the composite figure?

• Subtract the smaller area from the larger area

• Multiply the areas of the individual shapes

• Add the areas of the individual shapes

• Divide the total area by the number of shapes