Question

Find the total surface area of a cone, if its slant height is 23 m and diameter of its base is 24 m​

Answer 1

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Answer 2

Answer:

$diameter2=242=12m \\ </p><p></p><p></p><p>Total \: surface area = </p><p>πrL+πr2 \\ </p><p></p><p>Taking \: out \\ </p><p></p><p>πr \: </p><p> common, we get \\ </p><p>⇒πr(L+r)⇒227×12(21+12) \\ ⇒22×127(33) \\ ⇒22×127×33 \\ ⇒22×12×337 \\ =1244.57m2$

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