Question

Find the ratio between the total surface area of a cylinder to its curved surface area given that it's height and radius are 7.5cm and 3.5 cm

Answer 1

Step-by-step explanation:

Surface area of cylinder is 2πrh

here given is

radius 7.5cm

height.3.5cm

area= 2πrh

=2×22/7×7.5×3.5

11×15=165cm square