Question

please solve it with full solution

Answer 1

In this question,

Given that,

Diameter of Cylindrical Lampshade = 20 cm
Radius of Cylindrical lampshade = 20/2 = 10 cm

Total Height = Height of lampshade + Height of Margin top and bottom

=> Height = (30+2.5+2.5) cm = 35 cm

As we know that,

Area of Clothes = Curved Surface Area

$= > c.s.a = 2 \pi \: rh$

=> C.S.A = (2 x 22/7 x 10 x 35) cm^2
=> C.S.A = ( 2 x 22 x 10 x 5) cm^2
=> C.S.A = 2200 cm^2



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