Question

what is the area of a triangle with a base of 9units and a height of 7units ?

Answer 1

The area of a triangle is given by

$A=\frac{1}{2}\cdot b\cdot h$

Where b is the base and h is the height of the triangle.

Let us substitute the given values of base and height into the above formula

$\begin{gathered} A=\frac{1}{2}\cdot b\cdot h \\ A=\frac{1}{2}\cdot9\cdot7 \\ A=\frac{63}{2} \\ A=31.5 \end{gathered}$

Therefore, the area of the triangle is 31.5 square units.