Find the area of the sheet required to make 35 penholders in the shape of a cylinder with a base radius of 3cm and height 10.5cm
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Answered by
5
Radius of pen holder = 3 cm
Height = 10.5 cm
Area of sheet required for 1 pen holder= CSA of cylinder + area of the base
= 2πrh + πr²
=πr (2h + r)
= 22/7 x 3 ( 2 x 10.5 + 3)
= 22/7 x 3 (21 + 3)
= 22/7 x 72 sq cm
Area of sheet required for 35 pen holders = 22/7 x 72 x 35 = 7920 sq cm
Hope This Helps!
Height = 10.5 cm
Area of sheet required for 1 pen holder= CSA of cylinder + area of the base
= 2πrh + πr²
=πr (2h + r)
= 22/7 x 3 ( 2 x 10.5 + 3)
= 22/7 x 3 (21 + 3)
= 22/7 x 72 sq cm
Area of sheet required for 35 pen holders = 22/7 x 72 x 35 = 7920 sq cm
Hope This Helps!
salma2211906:
idk hu to mark brainiliest
u both helped great
WAIT! both of you gave me different answers which is the correct one? im confused
bella is correct
Answered by
0
We will require T.S.A (Total Surface Are) of cylinder whose formula is
2πr(r+h)
2x3.14x3²(3+10.5)
180cm²(approx)
2πr(r+h)
2x3.14x3²(3+10.5)
180cm²(approx)
your answer is absolutely wrong. pls don't write wrong answers it might give wrong understanding to people but thx for your effort for helping i really appreciate it just make sure you know the answer firmly.
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