Find the first semicircle area Area semicircle can be determined by dividing the full area of circle by 2. The first semicircle radius is 5 cm semicircle area = 1/2 circle area semicircle area = 1/2 × π × r² semicircle area = 1/2 × 3.14 × 5² semicircle area = 1/2 × 3.14 × 25 semicircle area = 39.25 cm²
Find the second semicircle area Because the dimension of the second semicircle is congruent to the first semicircle, they have similar area measurement, 39.25 cm².
Find the quarter circle area The area of quarter circle can be determined by dividing the full area of a circle by 4. q circle = 1/4 × area of circle q circle = 1/4 × π × r² q circle = 1/4 × 3.14 × 10² q circle = 1/4 × 314 q circle = 78.5 cm²
To find the entire area, add the area above together area = first semicircle + second semicircle + q circle area = 39.25 + 39.25 + 78.5 area = 157
