SOLUTION: Please could you help me with this question that I have been et. The question is to work out a formula for the area of a right angled triangle and then give the area when X=3 The

Question 174091: Please could you help me with this question that I have been et.
The question is to work out a formula for the area of a right angled triangle and then give the area when X=3
The sides of the triangle are 4x-1 and 4x+4
Please could you show the working out for this question.
Many thanks
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
The area of a triangle is given by
If you know the triangle is a right triangle, then you can just use the two 'shorter' sides. Let the shortest side be b and the middle length side be h.
You are given that the sides are in ratio x:4x-1:4x+4
So the longest side is 4x+4
That makes the short side, b = X = 3
The middle length side, h = 4x-1 = 12-1 = 11

square units (whatever units x is in (the problem doesn't say

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