the inner nd the outer radii of a cylindrical pipe are 4cm nd 5cm respectively.find the area of cross section of the pipe.use π=3.14.
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Answered by
2
R=5 &r=4
area of cross section=pie (25-16)
area=pie 9 cm^2
area of cross section=pie (25-16)
area=pie 9 cm^2
ricky007:
sry ur ans is wrong actual ans is 28.26m^2
so multiply 9 x 3.14→28.26
plz mark it as brianliest answer plz
Answered by
1
Answer:
28.26 cm2
Step-by-step explanation:
R= 5*5= 25 & 4*4= 16
area of the cross section of the pipe= 25-16
=9 *3.14
area=28.26cm sq
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