The curved surface area of a sphere with radius 3.5 cm is:
Answer & explanation
Correct answer: option 4
Curved surface area = 4\(\pi \)R2
= 4 × \(\frac{22}{7}\) × 3.5 × 3.5 = 154 cm2
The curved surface area of a sphere with radius 3.5 cm is:
Correct answer: option 4
Curved surface area = 4\(\pi \)R2
= 4 × \(\frac{22}{7}\) × 3.5 × 3.5 = 154 cm2