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A 7-by-9 grid has an area of 63 square units.
63 square units
parallel
The area of a regular pentagon with a radius of 7 is 10.1716. If the radius was 5, the area would be 7.26543.
The area of a triangle is calculated by multiplying the base by the height and dividing the result by 2. In this case, the area of the triangle would be (5 cm x 7 cm) / 2 = 35 cm².