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The height of a solid cylinder …

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The height of a solid cylinder is 10cm and diameter 8cm , 2 equal conicnal holes have been diameter is 6cm is made from both ends . Find the volume of remaining solid and also its surface area

Posted by Kumbar Bidar 6 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

Gaurav Seth 6 years, 1 month ago

Volume of cylinder = π( 4)² ×10

= 160π cm³

volume of one cone = 1/3 × π × 3² ×4
= 12π cm ³

therefore,
volume of both cones = 24π cm³

therefore,

volume of remaining portion = 160π - 24 π

= 136π cm ³

0Thank You

Sumit Kumar Rohan 6 years, 1 month ago

Surface area =.2π*4(10+4) + 2*π*4*l -2*π*3*3

0Thank You

Sumit Kumar Rohan 6 years, 1 month ago

Surface area = tsa of. Cylinder + 2* curved surface area of cone - 2*area of base of cylinder occupied by cone

1Thank You

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