SOLUTION: If the area of a triangle is 54 square inches and the base is 12 inches, then what is the height?

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Question 659: If the area of a triangle is 54 square inches and the base is 12 inches, then what is the height?
Answer by janinecb(25) About Me  (Show Source):
You can put this solution on YOUR website!
The formula for the area of a triangle is:
A+=+%281%2F2%29%2Ah%2Ab

Take the information you have in the problem, and substitute.
A = 54
b = 12

So, the problem looks like this:
54+=+%281%2F2%29+%2A+h+%2A+12

Simplify the right hand side of the equation by multiplying 1/2 and 12.
54+=+6+%2A+h

Then divide both sides by 6, since division is the opposite of multiplication.
9+=+h

So, the height is 9 inches.