Olivia's Garden (Find the area of a polygon using the area of a rectangle and the area of a triangle)

This lesson teaches how to calculate the area of a polygon by dividing it into familiar shapes like rectangles and triangles. Using Olivia's trapezoid-shaped garden as an example, the video demonstrates how to split the trapezoid into a rectangle and a right triangle. It explains the formulas for calculating the area of these shapes and combines them to find the total area of the trapezoid, which is 26 square yards.

What shape is Olivia's garden?

• Rectangle

• Triangle

• Trapezoid

• Circle

What is the formula for calculating the area of a rectangle?

• Length times width

• Base plus height

• Base times height divided by two

• Length plus width

How is the base of the triangle in the trapezoid determined?

• By dividing the total base of the trapezoid by two

• By adding the length of the rectangle to the total base of the trapezoid

• By subtracting the length of the rectangle from the total base of the trapezoid

• By multiplying the length of the rectangle by the total base of the trapezoid

What is the area of the rectangle in Olivia's garden?

• 15 yards squared

• 30 yards squared

• 20 yards squared

• 25 yards squared

What is the total area of Olivia's garden?

• 26 yards squared

• 24 yards squared

• 22 yards squared

• 20 yards squared