Geometryhard · Past Paper
What is the perimeter of a sector of a circle of radius 7 cm and angle 90 degrees?
A11 cm
B25 cm
C18 cm
D32 cm
✓ Correct Answer: B — 25 cm
Arc = (90/360)*2*(22/7)*7 = 11. Perimeter = 11 + 7 + 7 = 25 cm.
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