SOLUTION: The length of the base of a triangle is twice its height. If the area of the triangle is 25 square​ kilometers, find the height.

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Question 1076233: The length of the base of a triangle is twice its height. If the area of the triangle is 25 square​ kilometers, find the height.
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
Let x be the height of the triangle. Then its base is 2x. So:
1/2*x*2x=25
x²=25
x=+/-5
We get a positive value of x=5 kilometers as the height of the triangle. ☺☺☺☺