Answer:
586.17
Step-by-step explanation:
Area of triangle = 1/2 x base x height
[tex] = \frac{1}{2} \times 18 \times 7 \\ = \frac{1}{2} \times 126 \\ = 63 {cm}^{2} [/tex]
Area of Rectangle = Length x Width
[tex] = 22 \times 18 \\ = 396 {cm}^{2} [/tex]
Area of Semicircle =
[tex] \frac{1}{2} \pi {r}^{2} \\ = \frac{1}{2} (3.14)(9) {}^{2} \\ = 127.17cm {}^{2} [/tex]
Total Area = Area of Triangle + Area of Rectangle + Area of Semicircle
[tex] = 63 + 396 + 127.17 \\ = 586.17cm {}^{2} [/tex]