Question

If a triangle, has an area of 4x+8 and a height of 8, write an expression to represent the base. The base of the triangle is ?

Answer 1

we know that the area of a triangle is:

$A=\frac{h\cdot b}{2}$

so we replace the values of the area so:

$4x+8=\frac{8b}{2}$

and we solve for x

$\begin{gathered} 8x+16=8b \\ b=x+2 \end{gathered}$