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The curved surface area of a …

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The curved surface area of a cylinder is 88 cm squre . If the height of the cylinder is 7 cm . Find its total surface area ?

    • Posted by Chitralekha Khaund 3 years, 11 months ago

    CBSE > Class 09 > Mathematics
    • 2 answers

    Chaitanya Saini 3 years, 11 months ago

    CSA:- 88cm² Height:- 7cm 2πrh=88 2×22/7×r×7=88 2×22×r=88 r=88/22×2 r= 2cm TSA:- 2πr(r+h) 2×22/7×2(2+7) 2×22/7×2×9 792/7= 113.1cm²

    0Thank You

    Pratibha Kushwah 3 years, 11 months ago

    If csa of cylinder is 88 cm square 2πrh= 88 h = 7cm (given) 2×22/7×r×7 = 88 r= 2 cm Total surface area of cylinder is 2πrh+ 2πrsquare Therefore , total surface area of cylinder is 88 + 2πrsquare 2×22/7×2×2 = 88+ 25.14 Hence , area will be 113.14cm square

    0Thank You

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