Question

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Answer 1

Answer:

TSA=22/7×r(l+r)

TSA=1540 cm²

So,

22/7×14(l+14) = 1540cm²

22×2 (l+14) = 1540cm²

44(l+14) =1540cm²

l+14 = 1540/44

l+14 = 35

l = 35 -14

l = 21cm

CSA = 22/7×r × l

= 22/7×14×21

= 22×2×21

= 44×21

= 924cm²

Answer 2

Step-by-step explanation:

.

$total \: surfce \: area \: = \pi \: r \: (r + l) \\ \\ = 22.7 \times 14(14 + l) \\ l = 22.7$

$total \: surfce \: area \: = \pi \: r \: (r + l) \\ \\ = 22.7 \times 14(14 + l) \\ 1540 = 22.7 \times 14(14 + l) = \\ \frac{1540}{317.8} = (14 + l \\ \\ 4.84 = (14 + l) \\ l = 4.84 \times 14 \\ = 132.6 = 66.3$

$slnat \: height \: = \sqrt{ {h}^{2} } + {r}^{2}$

$curve \: surface \: area \: = \pi \: rl$

$\sqrt{ {h}^{2} } + {14}^{2} = \sqrt{ {h } ^{2} } + 16$

$curve \: surfce \: \: area = 22.7 \times 14 \times 66.3 = 21070.14sq$

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