pls solve this as fast as possible.........(10pts)
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Akshatj210:
10 pts are minimum pts
its urgent so I said....if i would have much point then I would surely give......
if you the solution pls solve.......
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Circumference= 2πR
88cm = 2×22/7×R
R= 14cm
Area of the shaded region= Area of outer circle - Area of inner circle
346.5 cm² = πR² - π(14)²
346.5 = 22/7(R²-(14)²)
346.5 × 7/22 = R² - (14)²
110.25 + (14)² = R²
306.25 = R²
R = 17.5 cm (ans)
88cm = 2×22/7×R
R= 14cm
Area of the shaded region= Area of outer circle - Area of inner circle
346.5 cm² = πR² - π(14)²
346.5 = 22/7(R²-(14)²)
346.5 × 7/22 = R² - (14)²
110.25 + (14)² = R²
306.25 = R²
R = 17.5 cm (ans)
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