Question

find the total surface area of a cylindrical container closed at both ends when the radius of the base is 7 cm and the height of the cylinder is 13 cm
a) 440 sq cm
b) 880 cm
c) 440 sq m
d) 880 sq cm

with the explanation​

Answer 1

r = 7 cm

h = 13cm

T.S.A. of cylindrical = 2πr(r+h)

2 x 22/7 x 7( 7+13)

2 x 22/7x7( 20)

2x 22/7 x 7 x 20

2 x 22 x 20

880 sq cm

Answer 2

Answer:

Radius of the base is 7

height is 13

total surface area=2πr(r+h)

2*22/7*7(7+13)

2*22*20

44*20

880sq cm