Question

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Answer 1

$sol \: 2)...total \: canvas = csa \: of \: cylinder + csa \: of \: cone \\ = 2\pi \: rh + \pi \: rl \\ = \pi \: r(2h + l) \\ = \binom{22}{7} \times \binom{105}{2} (2 \times 3 + 53) \\ = 11 \times 15 \times (59) \\ = 9735 {m}^{2}$