if the lateral surface area of the cross section are 90 cm sq and 24 cm sq,find the total surface area​

1 thought on “if the lateral surface area of the cross section are 90 cm sq and 24 cm sq,find the total surface area​”

1. Answer:

   Answer

   Given, h=5cm

   ⇒Let radius =r

   (i) Curved Surface Area

   ⇒94.2cm

   2

   =2πrh

   ⇒94.2 cm

   2

   =2×3.14×r×5cm

   ⇒r=3cm

   (ii) Volume of cylinder

   ⇒πr

   2

   h=3.14×3×3×5

   =141.2cm

   3

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