How to Find the Area of a Trapezoid Using Triangles and a Rectangle

The video tutorial explains how to find the area of a trapezoid by dividing it into two triangles and a rectangle. It covers a four-part question involving figure JKLM, composed of triangle JKN and trapezoid KLMN. The tutorial guides through calculating the length of line segment NM, the area of triangle JKN, the area of trapezoid KLMN, and finally, the total area of figure JKLM.

What is the first step in finding the area of a trapezoid as described in the video?

• Find the length of the longest side.

• Calculate the perimeter of the trapezoid.

• Measure the height of the trapezoid.

• Identify the two triangles and the rectangle.

How do you determine the length of line segment NM?

• Subtract the length of JN from the total base length.

• Add the length of JN to the total base length.

• Multiply the length of JN by the total base length.

• Divide the total base length by the length of JN.

What is the formula used to calculate the area of triangle JKN?

• Area = base - height

• Area = base * height

• Area = 1/2 * base * height

• Area = base + height

What is the area of triangle JKN?

• 4 square inches

• 12 square inches

• 8 square inches

• 6 square inches

How is the area of trapezoid KLMN calculated?

• By subtracting the area of a triangle from a rectangle.

• By adding the areas of two triangles and a rectangle.

• By dividing the area of a rectangle by two.

• By multiplying the base by the height.

What is the area of the rectangle in trapezoid KLMN?

• 36 square inches

• 24 square inches

• 30 square inches

• 42 square inches

What is the total area of figure JKLM?

• 48 square inches

• 54 square inches

• 60 square inches

• 42 square inches