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find curved surface of cylinder if r=7 cm and h= 21 cm step by step​

By Madeline

find curved surface of cylinder if r=7 cm and h= 21 cm step by step​

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Madeline

Draw triangle of sides 4,5,7 and cm and draw 3 right triangles of the same area​

The Pair of lines a1x + b1y + c1 = 0 and a2x + b2y + c2 = 0 are parallel lines then the ratio of

their coefficients is

1 thought on “find curved surface of cylinder if r=7 cm and h= 21 cm step by step​”

  1. Answer:

    924 cm²

    Step-by-step explanation:

    CSA of cylinder = 2πrh

    r = 7 cm h = 21 cm

    CSA =

    [tex] = 2\pi \: rh \\ = 2 \times \frac{22}{7} \times 7 \times 21 \\ = 2 \times 22 \times 21 \\ = 44 \times 21 \\ = 924 \: {cm}^{2} [/tex]

    Hope you get your answer

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