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.

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.