CTET 2 Math and Science Jul 2013 Paper

Question : 45 of 120

Marks: +1, -0

The circumference of the base of a right circular cylinder is 44 cm and its height is 15 cm. The volume (in

cm^3

) of the cylinder is use

(\;\text"use"\;π=\;\;{22}/{7})

Solution:

Circumference of the base of cylinder = 44 cm.

⇒2πr=44

∴{r}=\;\;{44×7}/{2×22}=7{cm}

Height of cylinder

=15cm.

∴ Volume of cylinder

=πr^{2}h=\;\;{22}/{7}×(7)^{2}×15

=\;\;{22}/{7}×7×7×15=2310

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