Semicircle area a = 1/2 × area of circle a = 1/2 × π × r²
Triangle area a = 1/2 × b × h
With the formula above, input the numbers which are given in the question Semicircle area a = 1/2 × π × r² a = 1/2 × 3.14 × 5² a = 1/2 × 3.14 × 25 a = 39.25 cm²
Triangle area a = 1/2 × b × h a = 1/2 × 5 × 4.5 a = 1/2 × 22.5 a = 11.25 cm²
Combining the area a = semicircle area + triangle area a = 39.25 + 11.25 a = 50.5 cm²
