SOLUTION: Triangle ABC has its coordinates at A(a, -1), B(8, -1) and C(5,4). If the base is twice the height, find a.

Question 759994: Triangle ABC has its coordinates at A(a, -1), B(8, -1) and C(5,4). If the base is twice the height, find a.
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
The base may be contained on the lower, horizontal line of . The highest point is C, so the height for the triangle is |-1|+|4|=5.

Given: Base is twice the height, so using b for base, h for height, h=5 and so .
Base is 10 units.

Consider the horizontal line again. One end point for the base is B(8,-1). We want 'a' where A is 10 units away from B. There are two choices for this. You can choose either or . Both will work.
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