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Answer: BSet 1: Circles (Beginner)
Explanation
PROBLEM
A circle has radius 6. What is its area? (Express answer as a number times pi)
A circle has radius 6. What is its area? (Express answer as a number times pi)
A.
6pi
B.✓ Correct
36pi
C.
12pi
D.
42pi
Detailed Explanation
Choice B is the best answer. Area = pi times r squared = pi times 6 squared = 36pi
Why others are wrong:
A: 6pi is incorrect because it does not satisfy the equation.
C: 12pi is incorrect because it does not satisfy the equation.
D: 42pi is incorrect because it does not satisfy the equation.