An arc of length 18 cm subtends an angle of 270° at the centre .Find the radius and the area of the sector
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18=270/360 × 2×22/7×r
r=18×4/3×7/22/2=42/11cm
area=270/360×22/7×42/11×42/11=378/11cm^2
please mark it as a brainliest answer
r=18×4/3×7/22/2=42/11cm
area=270/360×22/7×42/11×42/11=378/11cm^2
please mark it as a brainliest answer
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