Ms. Hall has a large pillow shaped like a triangular prism in the reading corner of her classroom. She is making a new cover for the pillow out of fabric that costs $2 per square foot. The dimensions of the pillow are shown below.
How much will Ms. Hall need to spend to completely cover the pillow if the fabric must be purchased in a whole number of square feet?
Use the fact that
1
square foot
144
square inches
.
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Not feeling ready yet? These can help:
Skill IconBB.5Circumference of circles
Skill IconBB.6Area of circles
Skill IconBB.12Area of compound figures with triangles
Skill IconCC.1Surface area of cubes and prisms
Skill IconCC.5Volume of cubes and prisms
Skill IconCC.7Volume of prisms: advanced