Calculating the Area of Trapezoids

The video tutorial teaches how to calculate the area of a trapezoid using the formula: area equals one-half the sum of the two bases times the height. It begins with an introduction to trapezoids, followed by a detailed explanation of the formula. The tutorial includes multiple examples, guiding students through the process of identifying bases and height, performing calculations, and handling decimals. Students are encouraged to practice independently with provided exercises. The video concludes with a summary of key points and a reminder to label answers correctly.

What shape is described as a rectangle with one or two triangular extensions on its sides?

• Square

• Trapezoid

• Rectangle

• Triangle

What is the formula for the area of a trapezoid?

• Area = 2 * (base1 + base2) * height

• Area = (base1 + base2) / 2 * height

• Area = (base1 + base2) * height / 2

• Area = base * height

In the area formula for a trapezoid, what does 'base1' and 'base2' represent?

• The parallel sides of the trapezoid

• The diagonal lengths across the trapezoid

• The perpendicular heights from bases

• The slanted sides of the trapezoid

If base1 is 3 inches, base2 is 8 inches, and the height is 2 inches, what is the area of the trapezoid?

• 11 sq. inches

• 22 sq. inches

• 33 sq. inches

• 44 sq. inches

How do you convert the fraction 1/2 into a decimal for use in calculations?

• 0.5

• 2.0

• 0.2

• 1.5

What is the area of a trapezoid with bases 6 inches and 7.9 inches, and height 3 inches?

• 20.85 sq. inches

• 26.85 sq. inches

• 22.35 sq. inches

• 24.75 sq. inches

What is the first step in solving for the area of a trapezoid using its formula?

• Multiply the bases by the height

• Add the bases together

• Divide the sum of the bases by 2

• Multiply the height by 2

If the sum of the bases is 7.5 inches and the height is 5 inches, what is the area of the trapezoid?

• 37.5 sq. inches

• 75 sq. inches

• 19.75 sq. inches

• 18.75 sq. inches

What should you always remember to include in your answer when calculating area?

• Linear units

• Cubic units

• Percentage

• Square units

Which of the following is not a correct step in calculating the area of a trapezoid?

• Adding the lengths of the bases

• Subtracting the smaller base from the larger base

• Multiplying the sum of the bases by the height

• Dividing the product by 2