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Q: When making a book cover Anwar adds an additional 20 square inches of paper will Anwar used to make a cover for a book 11 inches 8 inches wide 1 inch height?

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Height = Area/Base = 105/15 = 7 inches

4 inches Area= 1/2(base)(height)

If you mean a rectangle and not a square then the area is 14 times 9 = 126 square inches

32 inches

The area of a parallelogram with a base of 20 inches and a height of 8.5 inches is 170 square inches.

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height = 768/24 = 32 inches

7 inches

The length of a triangle with a height of 12 inches and an area of 18 square inches is 3 inches, since area is 1/2 * base * height. Therefore, 2 * area divided by height = 2 * 18 /12 = 3

18 square inches is probably the area of the triangle, not the length of the base. The length of the base would be measured in inches (a unit of length), not square inches (a unit of area). So area = 1 / 2 * base * height = 18 square inches (given) height = 4 * base (given) 1 / 2 * base * 4 * base = 18 square inches 2 * base * base = 18 square inches base * base = 9 square inches base = 3 inches height = 4 * base = 4 * 3 inches = 12 inches Checking our work: height is 4 times the base (12 = 4 * 3) area is 18 (1/2 * 12 * 3).

The area of a parallelogram with a base of 9 inches and a height of 10 inches is 90 square inches.

Height = Area/Base = 105/15 = 7 inches

4 inches Area= 1/2(base)(height)

If you mean a rectangle and not a square then the area is 14 times 9 = 126 square inches

196 square inches

63 square inches

20 inches

32 inches