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If an equilateral triangle measures 9 inches on each side what is the perimeter?
Wiki User
∙ 14y ago
Area of a triangle = 1/2*base*height
Use Pythagoras to find the height which is 7.794228634 inches
Area = 1/2*9*7.794228634 = 35.07402885 square inches
Answer: 35 square inches to the nearest square inch.
Wiki User
∙ 14y ago
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