Area and Dimensions of Shapes

The video tutorial explains how to find the area of a trapezoid by breaking it down 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 viewers through calculating the length of line segment NM, the area of triangle JKN, the area of trapezoid KLMN, and 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.

What is the total length of the base of figure JKLM?

• 12 inches

• 18 inches

• 15 inches

• 20 inches

How long is line segment JN in the figure?

• 7 inches

• 3 inches

• 9 inches

• 5 inches

What is the length of line segment NM?

• 10 inches

• 12 inches

• 15 inches

• 18 inches

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

• Half of base times height

• Base divided by height

• Base plus height

• Base times height

What is the area of triangle JKN?

• 5 square inches

• 6 square inches

• 7 square inches

• 4 square inches

What is the height of triangle JKN?

• 4 inches

• 5 inches

• 3 inches

• 6 inches

What is the base of triangle JKN?

• 5 inches

• 2 inches

• 3 inches

• 4 inches

What is the base of the rectangle in trapezoid KLMN?

• 6 inches

• 7 inches

• 8 inches

• 9 inches

What is the height of the rectangle in trapezoid KLMN?

• 3 inches

• 4 inches

• 5 inches

• 6 inches