A) 3.15
B) 0.310
C) 314
D) 269
🧠 Explanation (Math):
Given: Circle radius = 1 cm; find area in mm² Step 1: Area in cm² = πr² = π × 1² = π Step 2: 1 cm² = 100 mm² ⇒ area = 100π ≈ 314 mm² (π≈3.14) Final Answer: 314
A) 3.15
B) 0.310
C) 314
D) 269
Given: Circle radius = 1 cm; find area in mm² Step 1: Area in cm² = πr² = π × 1² = π Step 2: 1 cm² = 100 mm² ⇒ area = 100π ≈ 314 mm² (π≈3.14) Final Answer: 314
