What is the area of a circle with radius 7 cm using π = 22/7?
A
154 cm²
B
144 cm²
C
164 cm²
D
174 cm²
Correct Answer: Option A — 154 cm²
Explanation:
Area = π × r² = (22/7) × 7 × 7 = 22 × 7 = 154 cm². Using π = 22/7 is standard in competitive exams for ease of calculation. Circle area form...
Area = π × r² = (22/7) × 7 × 7 = 22 × 7 = 154 cm². Using π = 22/7 is standard in competitive exams for ease of calculation. Circle area formulas are applied in problems involving fields circular tracks rings and cross-sections of cylindrical or spherical objects.