5
Answer: DSet 2: Circles (Advanced)
Explanation
PROBLEM
A circle has radius 3. What is the area of a 60-degree sector? (Express as a number times pi)
A circle has radius 3. What is the area of a 60-degree sector? (Express as a number times pi)
A.
3pi
B.
9pi
C.
6pi
D.✓ Correct
1.5pi
Detailed Explanation
Choice D is the best answer. Sector area = (60/360) times pi times 3 squared = 1.5pi
Why others are wrong:
A: 3pi is incorrect because it does not satisfy the equation.
B: 9pi is incorrect because it does not satisfy the equation.
C: 6pi is incorrect because it does not satisfy the equation.