3 years ago

The area of a triangle is 16 square units. The base of the triangle is x+4. The height of the triangle is x. Find x.

1 answer:

5 0

The area of triangle formula is A = B*H / 2
so it means 16 square = (x+4) x /2
so x²+4x -32=0, D' = 2²- (-32)= 36, sqrt of D' = 6
so x = -2 -6 = -8 or x= -2 +6 = 4
x must be positive so x = 4

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