Question

The slant height and base diameter of a conical tomb are 25m and 14m respectively. Find the cost of white washing it's curved surface at the rate of Rs210 per 100m square.​

Answer 1

cost of white washing 100m² area = Rs 210

cost of white washing 1m² area =Rs 1/100×210

cost of white washing 550m² area = 1/1000×210×550

= Rs 1155...

Heya

plz mark as branliest..

Answer 2

Answer:

₹1155

Step-by-step explanation:

Rate of white wash is-

₹210=100m^2

₹210/100 = 1m^2

₹21/10 = 1 mt square

we have to paint lateral/curved surface area so

• curved surface area=
• $\pi {r}l$
• hence
• $\frac{22}{7} \times \frac{14}{2} \times 25$

cost of white wash =

$\frac{22}{7} \times \frac{14}{2} \times 25 \times \frac{21}{10}$

$1155 {m}^{2}$