Answer:
Trapezoid:
[tex]A=\frac{1}{2}h(b_{1}+b_{2})[/tex]
Rhombus:
[tex]A=\frac{1}{2}d_{1}d_{2}[/tex]
Triangle:
[tex]A=\frac{1}{2} bh[/tex]
N-gon:
[tex]A=n*\frac{1}{2} as\\\\A=\frac{1}{2} ap[/tex]
Step-by-step explanation:
In the trapezoid, h is the height and b is the base.
In the rhombus, d is the diagonal.
In the triangle, b is the base and h the height.
In the n-gon, n is the sides of the n-gon, a is the apothem, s is the side, and p is the perimeter.
