Question

Q2. Find the
(i) total surface area and (ii) volume of a right circular cylinder whose height is 15 cm
and the radius of the base is7 cm.

Answer 1

Answer:

Given: height of a cylinder =15cm and radius of cylinder =7cm

(I) total surface area of cylinder = 2πr(h+r)

=2*22/7*7(15+7) sq. cm

= 44*22 sq. cm

= 968 sq.cm

(II) volume of a cylinder = πr^2h

= 22/7*(7)^2*15 cubic cm

=22*7*15 cubic cm

=22*105 cubic cm

=2310 cubic cm

Answer 2

Answer

Given :-

Cylinder of height = 15cm

Radius = 7cm

TSA of Circular Cylinder = 2πrh + 2πr²

= 2πr( h + r )

= 2×22/7×7(15+7)

= 44×22

= 968cm²

Volume of right circular Cylinder

= πr²h

= 22/7×7×7×15

= 22×105

= 2310cm³

@ll the best :)