Answer:
[tex]a = \frac{1}{2} (a + b)h \\ = \frac{1}{2} (8.52 + 22.2)9.86 \\ = 151.4496 {cm}^{2} [/tex]
Step-by-step explanation:
The area of the trapezoid is given by a=1/2(a+b)h
where a=8.52cm , b=22.2cm and h=9.86cm
