Answer:
6.104 m
Step-by-step explanation:
The length of the bench is 30.52 m.
5 people want to sit down on the bench.
We assume they are seated with equal spacing between themselves.
The length occupied by each person will therefore be:
30.52 / 5 = 6.104 m
The answer is B
144.2 cm
Length of the iron rod is 7.4cm
Radius is 3.1m
Therefore the surface area can be calculated as follows
= 2πrl
= 2×3.142×3.1×7.4
= 144.2 I'm
Hence the surface area is 144.2cm
