Answer:
1. 490.625 sq. inches
2. 254.34 sq. cm
3. 706.5 sq. meters
4. 2374.625 sq. cm
Step-by-step explanation:
1. The wheel of a motorcycle has a diameter of 25 inches. What is its area?
A = πd²/4
A = 3.14 × 25²/4
A = 3.14 × 625/4 = 490.625 sq. inches
2. A paper plate has a radius of 9 cm. What is its area?
A = πr²
A = 3.14 × 9²
A = 3.14 × 81 = 254.34 sq. cm
3. A circular pool has a radius of 15 meter. What is its area?
A = πr²
A = 3.14 × 15²
A = 3.14 × 225 = 706.5 sq. meters
4. A basketball ring has a diameter of 55 cm. What is its area?
A = πd²/4
A = 3.14 × 55²/4
A = 3.14 × 3025/4 = 2374.625 sq. cm
