Glencoe Math: Course 2, Volume 2
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Glencoe Math: Course 2, Volume 2 View details
5. Volume of Pyramids
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Exercise 28 Page 659

Use the conversion factor that 1 yard is 3 feet.

Converted Lengths: See solution.
Figure's Area: 1462.5 square feet

Practice makes perfect

We want to convert the lengths present on the following diagram to feet. Then, we want to find the area of the figure present on that diagram.

Converting between yards (yd) and feet (ft) will involve using a conversion factor. 3ft/1ydMultiplying the given lengths by this conversion factor will convert it to feet. Let's first convert 13 yards to feet.
13yd * 3ft/1yd
13yd * 3ft/1yd
13yd * 3ft/1yd
13*3ft/1
39ft/1
39ft
14 yards is 39 feet. Now, let's convert 12 12 yards to feet.
12 12yd * 3ft/1yd
12.5yd * 3ft/1yd
12.5yd * 3ft/1yd
12.5yd * 3ft/1yd
12.5*3ft/1
37.5ft/1
37.5ft
12 12 yards is 37.5 feet. Let's replace the lengths on our diagram with their values in feet.

Next, we want to find the area of the figure from the diagram. This figure is a parallelogram. One of its sides is 39 feet long and the height falling onto that side is 37.5 feet. The area of a parallelogram is the product of side and height falling onto that side. Let's find the area of our figure! A = 39( 37.5)= 1462.5 The figure's area is 1462.5 square feet.