Question

room in m2
A closed metallic cylinder has its base diameter 56 cm and it is 2.25 m high. Find
Left
the cost of the metal used to make it if it costs 80 per square metre.
243​

Answer 1

Step-by-step explanation:

Radius= Diameter/2= 56/2cm= 28cm

Height= 2.25m

We have to convert radius in m

Therefore, 28/100m=0.28m

T.S.A=2πr (r+h)

=2*22/7*0.28*(0.28+2.25)=1.76*2.53m^2=4.4528m^2

Cost of metal=$(4.4528*80)

=$356.22