Question

A sheet measuring 44m ×11m is folded along its length 44m to form a cylimder. Find the radius of this cylinder.

Answer 1

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Area of the total sheet= (44 × 11)m^2=484m^2

Area of cylinder= (2×π×r)(h+r)

π= 3.142~3

r= ?

h=height

By the condition--------》

(2 × π ×r)(h+r)= 484

(π×r)(h+r) = 242

(π×r)(44+r) = 242

3×r×47=242

r= (242/141) near equals to 1.8m

The radius of the cylinder 1.8 m when the value of pie is considered to be 3.

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