Mathematics · Mensuration

Two concentric circles with radii a cm and (a + 2) cm are drawn on a paper. If the difference between their areas is 88 cm2, find the value of a. (Take π = 227)

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15
26✓
31.5
42.5

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Two concentric circles with radii a cm and (a + 2) cm are drawn on a paper. If the difference between their areas is 88 cm2, find the value of a. (Take π = 227)

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Two concentric circles with radii a cm and (a + 2) cm are drawn on a paper. If the difference between their areas is 88 cm2, find the value of a. (Take π = 227)

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