Question

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Answer 1

33)

48cm = 0.48 m
formula= πdh
= 22 / 7 *0.48 * 7 = 10.56
10.56m^2 ×2×15= 316.8 rs

Answer 2

Answer:

Step-by-step explanation:

33)

Height=7m

Radius=Diameter/2=48/2=24cm=0.24m

now we have to find the CSA of pillar i.e., 2*pi*Radius *Height

CSA of pillar=2*22/7*0.24*7=10.56 m Square

CSA of 15 pillars=10.56*15=158.4 m Square

Cost of painting 1m Square= Rs2

Cost of painting 158.4m Square=158.4*2=Rs316.8

34)

We can calculate the CSA of Cylinder by finding the area of square sheet

i.e., 88*10=880cm square

CSA of cylinder=2*pi*Radius*height=880 cm Square

Height=10cm

Then Radius on solving the above equation is 14cm

Volume of cylinder=pi*r*r*h=22/7*14*14*10=6160 Cm Cube

hope this answer will help you