Area and Perimeter Unit Test

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Question
Rainee cuts a triangle out of felt. The base of her triangle is 7 inches, and the area of her triangle is 43.75 square inches. What is the height of Rainee’s triangle? Write your answer in decimal form.(1 point)
inches

1 answer

The formula for the area of a triangle is A = 1/2 * base * height. We are given the base (7 inches) and the area (43.75 square inches).

Substitute these values into the formula:
43.75 = 1/2 * 7 * height

Solve for height:
43.75 = 3.5 * height
height = 43.75 / 3.5
height = 12.5

Therefore, the height of Rainee's triangle is 12.5 inches.