SOLUTION: The area of the triangle is 21 in, Height is 7 in, What is the base's length?

Algebra ->  Triangles -> SOLUTION: The area of the triangle is 21 in, Height is 7 in, What is the base's length?      Log On


   

Question 557599: The area of the triangle is 21 in,
Height is 7 in,
What is the base's length?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
A = (bh)/2

21 = (b*7)/2

21*2 = 7b

42 = 7b

42/7 = b

6 = b

b = 6


So the base is 6 inches.

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