EC > GATE 2024 > Linear Algebra
Four identical cylindrical chalk-sticks, each of radius $r=0.5$ cm and length $l=10$ cm, are bound tightly together using a duct tape as shown in the following figure.
The width of the duct tape is equal to the length of the chalk-stick.
The area $(in~cm^{2})$ of the duct tape required to wrap the bundle of chalk-sticks once, is
The area $(in~cm^{2})$ of the duct tape required to wrap the bundle of chalk-sticks once, is
Correct : C
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