A cube whose edge is 14 cm long has on each of its faces a circle of 7 cm radius painted yellow. What is the total area of unpainted surface? (Take π = 22/7)
A.126 square cm
B.189 square cm
C.252 square cm✓ Correct
D.315 square cm
Explanation
Total surface area of cube = 6 × 14² = 1176 sq cm. Painted area = 6 circles × π × 7² = 6 × (22/7) × 49 = 924 sq cm. Unpainted area = 1176 - 924 = 252 sq cm.
💡 Practice unlimited CDS PYQs + AI-tracked progress on each topic. Sign up free →