The base of triangle is b = 30 cm.
The height of triangle is h = 28 cm.
Determine the area of the triangle.
[tex]\begin{gathered} A=\frac{1}{2}\cdot b\cdot h \\ =\frac{1}{2}\cdot30\cdot28 \\ =15\cdot28 \\ =420 \end{gathered}[/tex]Thus, area of triangle is 420 sq. cm