MathematicsMensurationJAMB
The area of a sector of a circle of radius 14 cm is 77 cm². Find the angle of the sector. (Take π = 22/7.)
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Answer: C. 45°
Area = θ/360 × πr² = θ/360 × 616 = 77, so θ = 77 × 360/616 = 45°.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.