Question

the volume and curved surface area of a cylinder is 154 cm cube and 440 centimetre square respectively find the radius and height of the cylinder

Answer 1

volume=π(r)2h
154=22/7×(r2)h
49=r2h ........,.....(1)

CSA=2πrh
440=2×22/7×rh
70=rh
h=70/r.........,...,...(2)

put (2)in (1)

49=r2×70/r
49/70=r
r=7/10 cm

put r=7/10 in (2)

h=70/7/10
h=700/7
h=100cm

hence, r=7/10cm and h=100cm

Answer 2

Answer:

please help in this question

Step-by-step explanation:

pleaseeeeeeeee