Step-by-step explanation:
Area of a circle: π×r²
1. 3.14×3.5²
= 38.468m²
m2. 3.14×15dm²
= 706.5dm²
3. 3.14×10cm²
= 314cm²
4. 3.14×8.5cm²
= 226.885cm²
5. Diameter ÷ 2 = Radius
= 8m ÷ 2 = 4m
3.14×4m²
= 50.24m²
The first user who answer is correct :)
