Finding Area of Trapezoids

Jason Jacobson, with his bunny Bubbles, teaches how to find the area of a trapezoid using two methods: decomposing the trapezoid into simpler shapes and applying a formula. He demonstrates both methods with examples, providing a step-by-step guide to calculating the area. The video concludes with a practice problem and a farewell.

What is the main topic of the video presented by Jason Jacobson?

• How to find the area of a rectangle

• How to find the area of a triangle

• How to find the area of a trapezoid

• How to find the area of a circle

Which two methods are introduced for finding the area of a trapezoid?

• Using a calculator and estimation

• Decomposition and using a formula

• Graphical method and approximation

• Using a ruler and a protractor

In the decomposition method, into which shapes is the trapezoid divided?

• A square and a triangle

• Two triangles and a rectangle

• Two rectangles and a triangle

• Three triangles

What is the formula for the area of a triangle used in the decomposition method?

• Base plus height divided by 2

• Base plus height

• Base times height divided by 2

• Base times height

What is the first step in the formula method for finding the area of a trapezoid?

• Divide the bases

• Add the two bases

• Subtract the bases

• Multiply the bases

In the formula method, what do you do after adding the two bases?

• Add the height

• Divide by the height

• Subtract the height

• Multiply by the height

What is the final step in the formula method for calculating the area of a trapezoid?

• Subtract 2

• Add 2

• Divide by 2

• Multiply by 2

In the new example, what is the length of the rectangle's base in the decomposition method?

• 13

• 17

• 9

• 7

What is the area of the rectangle in the new example using the decomposition method?

• 104

• 72

• 63

• 90

What is the total area of the trapezoid in the new example using the decomposition method?

• 72 inches squared

• 90 inches squared

• 104 inches squared

• 120 inches squared