SOLUTION: the height of a triangle is 18 inches. find the length of the base if the area of a triangle is 63 square inches.

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Question 303682: the height of a triangle is 18 inches. find the length of the base if the area of a triangle is 63 square inches.
Answer by london maths tutor(243) About Me  (Show Source):
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the height of a triangle is 18 inches. find the length of the base if the area of a triangle is 63 square inches.
Area of triangle = 1/2*base*height = 63 sqare inches.
height = 18 inches
Area = 1/2*base*18 = 63
base*18 = 63*2
base*18 = 126
base = 126/18
= 7 inches
Answer: the length of base is 7 inches.