SOLUTION: THE length of the base of a triangle is twice its height. if the area of the triangle is 169 squared kilometers find the height

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Question 411033: THE length of the base of a triangle is twice its height. if the area of the triangle is 169 squared kilometers find the height
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
Let the height of a triangle is x kilometers, then the length of the base is 2x, The area of the triangle is %281%2F2%29%2Ax%2A2x
Equation
%281%2F2%29%2Ax%2A2x=169
x%5E2=169
x=13
The height is 13 kilometers