11
Mathematics
Areas Related to Circles
Perimeter and area of a sector, segment of a circle.
Sample Practice Questions
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1
Medium
The area of a sector of a circle with radius 7 cm and angle 90° is:
A38.5 cm²
B49 cm²
C154 cm²
D14 cm²
2
Easy
The circumference of a circle whose area is 154 cm² is:
A22 cm
B44 cm
C88 cm
D11 cm
3
Medium
The length of an arc subtending an angle 60° at the centre of a circle of radius 21 cm is:
A11 cm
B22 cm
C33 cm
D44 cm
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