Question

What will be the cost of making
a closed cone of tin Sheet
having radius of base 6m and
slant height is 8m if the
rate of making is Rs.10 per sq.m​

Answer 1

Answer:

rs.2640

Step-by-step explanation:

$r = 6m \\ l = 8m \\ tsa = \pi \: rl + \pi \: {r}^{2} \\ = \pi \: r(l + r) \\ = \frac{22}{7} \times 6(8 + 6) \\ = \frac{22}{7} \times 6 \times 14 \\ = 22 \times 12 \\ = 264 {m}^{2} \times 10\\ rs.2640$