SOLUTION: A triangle with height 12 inches is to have area less than 120 square inches. What must be true about the base of the triangle?"

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Question 711291: A triangle with height 12 inches is to have area less than 120 square inches. What must be true about the base of the triangle?"
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Area of Triangle: A = bh/2

Area must be less than 120, so

A < 120

bh/2 < 120

b*12/2 < 120

b*6 < 120

6b < 120

b < 120/6

b < 20

So the base must be less than 20 inches.