Question

CBSC Class 8 Mensuration
If the curved surface area of a cylinder of height 5 cm is 94.2 cm², then find the
(a) radius of the base
(b) volume of the cylinder (Taken=3.14)​

Answer 1

Step-by-step explanation:

c.s.a of cylinder =94.2

2pi rh=94.2

h=5cm

:2×3.14×r×5=94.2

31.4×r=94.2

r=94.2/31.4=3cm

also,

volume of cylinder =pi r²h

=3.14×3×5=47.1