Answer:
The trapezoid's area formula is [tex]A = \frac{1}{2} (b_{1} + b_{2})h[/tex], the circle's area formula is [tex]A =[/tex]π[tex]r^{2}[/tex], the triangle's area formula is [tex]A = \frac{1}{2}bh[/tex], and the parallelogram's area formula is [tex]A = bh[/tex].
