1.

Find the c.s.a of cylinder whose circumference of base is 44cm and heights 10cm​

Answer»

CIRCUMFERENCE of base of CYLINDER = 44 cm = 2πr

= 2 × 22/7 × r

= 44/7 × r

r = 44 × 7/44

r = 7cm

Now, HEIGHT of cylinder,h = 10cm

radius of its base,r = 7cm

CSA of cylinder = 2πrh

= 2 × 22/7 × 7 × 10

= 440cm^2



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