Question

The expression 1/2bh gives the area of a triangle where b is the base of the triangle and h is the height of the triangle. What is the area of a triangle with the base of 7cm and a height of 4 cm?

Answer 1

`A_(\triangle)=(1)/(2)bh\\\\\text{We have}\ b=7cm,\ h=4cm\\\\\text{Substitute:}\\\\A_(\triangle)=(1)/(2)(7)(4)=(28)/(2)=\boxed{14\ cm^2}`