-
Between a square of perimeter 44 cm and a circle of circumference 44 cm, which figure has larger area and by how much?
-
- Square, 33cm²
- Circle, 33 cm²
- Both have equal area.
- Square, 495 cm²
- Square, 33cm²
Correct Option: B
Using Rule 10,
Area of a square = (side)²
= | ² | = | ² | ||||||
4 | 4 |
= (11)² = 121 cm²
Area of a cricle = π(radius)²
= π | ² | = | ||||
2π | 4π |
= | |||
4 × | |||
7 |
= 22 × 7 = 154 cm²
Area of circle – Area of square
= 154 – 121 = 33cm²
∴ Area of the circle is larger than the area of the square by 33 cm².