A prism has a height of 5 inches and a volume of 80 cubic inches. Select all figures that could be the base for this prism.A. A2-inch-by−8-inch rectangleB. A circle with radius 2 inchesC. A heart-shaped base with an area of 16 square inchesD. A square with side length 4 inches.E. A right triangle with legs 4 inches long
Q. A prism has a height of 5 inches and a volume of 80 cubic inches. Select all figures that could be the base for this prism.A. A2-inch-by−8-inch rectangleB. A circle with radius 2 inchesC. A heart-shaped base with an area of 16 square inchesD. A square with side length 4 inches.E. A right triangle with legs 4 inches long
Volume Formula Application: The volume of a prism is given by the formula V=Bh, where B is the area of the base and h is the height of the prism. We are given that the height (h) is 5 inches and the volume (V) is 80 cubic inches. We can use this information to find the required area of the base (B) by rearranging the formula to B=hV.
Base Area Calculation: Using the formula B=hV, we substitute the given values to find the area of the base.B=5 inches80 cubic inches=16 square inches.The area of the base must be 16 square inches for the prism to have a volume of 80 cubic inches.
Option Evaluation: Square: Now we will check each option to see if the area of the base matches 16 square inches.a. A square with side length 4 inches.The area of a square is given by A=side2. For a square with side length 4 inches, the area is A=42=16 square inches.
Option Evaluation: Rectangle: b. A 2-inch-by-8-inch rectangle.The area of a rectangle is given by A=length×width. For a rectangle with length 8 inches and width 2 inches, the area is A=8×2=16 square inches.
Option Evaluation: Circle: c. A circle with radius 2 inches.The area of a circle is given by A=πr2. For a circle with radius 2 inches, the area is A=π×22=π×4≈12.57 square inches, which is not equal to 16 square inches.
Option Evaluation: Heart: e. A heart-shaped base with an area of 16 square inches.The area is explicitly given as 16 square inches, which matches the required area for the base of the prism.
Option Evaluation: Triangle: d. A right triangle with legs 4 inches long.The area of a right triangle is given by A=(1/2)×base×height. For a right triangle with legs 4 inches long, the area is A=(1/2)×4×4=8 square inches, which is not equal to 16 square inches.
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