Question

Please solve the 9th question correctly.

I will mark as brainliest. Plz fast
Ans answer correctly.

Answer 1

Answer:

height of tent=3.3m

diameter d = 12m

height of cylindrical = 2.2 m

=> r = d/2 = 6 m

=> The height of the conical part of the tent is given by,

= [Height of the tent] - [Height of the cylindrical part of the tent]

= 3.3 - 2.2

= 1.1 m

=> To find the slant height of the cone we have the formula as,

Slant Height, L = √(h²+r²)

=> l =√(1.1²+6²)=6.1 m

=> total area = 2πrh + πrl

=> 2*3.14*6*2.2 + 3.14*6*6.1

=> A = 197.9 m²

=> A = 198 m²

cost = 198 * 500 = 99000 ₹