Question

what is the answer of this questions

Answer 1

the ans is 260 cm. Just consider semicircle on ends and rectangle as the middle portion.
Hope it helps you out.

Answer 2

Answer:

Step-by-step explanation:

distance between centres of both rollers= 22+21+21=64

length of belt not in contact of rollers= 64 cm

circumference of roller= 2πr

=2*(22/7) 21=132 cm

length of bet covered on  one roller = circumference/2 = 132/2 = 66cm

length of belt on both rollers= 66+66 = 132 cm

total length of belt= 132+64 = 196 cm