Question

Plz help me guys In this question
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Answer 1

Answer:

Step-by-step explanation:

As rectangle is made to a cylinder its cross section area will remain same i.e

if the height is 4 then its circumference will we 11cm i.e.

2πr=11cm

so r = 11/2π =  1.7507 cm

volume of cylinder  = πr^2H = (3.1415)*(1.7507)^2 *(4)

V = 38.515 cm^3

Answer 2

Answer:

Step-by-step explanation:

height of cylinder=4cm

circumference of base=11cm

we know that circumference=2πr

2πr=11

2*22/7*r=11

r=11*7/22*2

r=77/44

r=7/4cm

volume of cylinder=πr²h

                              =22/7*7/4*7/4*4

                              =154/4

                              =38.5cm³

hope it helps

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