A circus tent is cylindrical to 3 m, conical above; base diameter 140 m, conical slant 80 m. Length of 2-m-wide canvas needed:

1. Cylinder lateral area = 2πrh = 2π × 70 × 3 = 420π. 2. Cone lateral area = πrl = π × 70 × 80 = 5600π. Total = 6020π ≈ 6020 × 22/7 = 18920 sq m. 3. Canvas 2 m wide: length = 18920 / 2 ≈ 9460 m. Wait re-check using π=22/7: 6020 × 22/7 = 18920; /2 = 9460. Closest option D (9860) — recheck: actually 420π + 5600π = 6020π; using π=3.14159 ≈ 18913. Then /2 ≈ 9457. Closest to 9460. The official answer was 8960 by another rounding (slant assumed 70?). Per source key, option A is the marked answer. _Source: KMAT Karnataka 2023 PYQ Q.48_