A circular well with a diameter of 2 metres , is dug to a depth of 10 metres. What is the volume of the earth dug out?
Choose the correct answer:	A) 32 m 3	B) 31.4 m 3	C) 40 m 3	D) 44 m 3	E) none

Rationale: "solution volume = π r 2 h ‹ = › ( 22 / 7 × 1 × 1 × 10 ) m 3 ‹ = › 31.4 m 3 . answer b"
Answer: B