Question

the slant height and base diameter of a conical tomb 25 m and 14m respectively. find the cost of whitewashing its CSA at the rate of rupees 210 per 100 square meter​

Answer 1

l=25m

d=14m

r=7m

C.S.A of cone =22/7 ×7×25

C.S.A of cone =22×25

C.S.A of cone =550m*2

Cost =550×210/100

Cost=55×21

Cost =1155Rs Ans