Question

landis cuts a foam block along the red line. when he looks at the newly exposed face, what is the shape of the cross - section?
a. a rectangle, 5 inches by 6 inches
b. a rectangle, 15 inches by 6 inches
c. a rectangle, 5 inches by 15 inches
d. a square, 5 inches by 5 inches

Explanation:

Step1: Analyze the cross - section

When a rectangular prism (foam block) is cut parallel to its faces, the cross - section is a rectangle. The dimensions of the cross - section are determined by the height and width of the prism.

Step2: Identify the dimensions

The height of the prism is \(6\) inches and the width is \(5\) inches.

Answer:

A. A rectangle, 5 inches by 6 inches