a round pillar is 4m long with a diameter of 60 cm find its surface area π= 3.14
Answers
Answered by
1
r=d /2
60/2
30cm
surface area =4πr
4*3.14*30
376.8cm2
Answered by
1
Answer:
its surface areais 8.11 m^2
Step-by-step explanation:
h= 4 m= 400 cm
d= 60 cm
r= 60/2=30 cm
area= 2πrh+2πr^2
= (2*3.14*30*400) +( 2*3.14*30^2)
= 75408+ 5655.6
= 81063.60 cm^2
= 8.11 m^2
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