find the ratio in which the line segment joining the points a(3 -3) and b(-2 7) is divided by x-axis.Also find the co-ordinates of point of division
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Answer:
Height (h
1
) of larger cylinder =220 cm
Radius (r
1
) of larger cylinder =
2
24
=12 cm
Height (h
2
) of smaller cylinder = 60 cm
Radius (r
2
) of smaller cylinder =8 cm
Total volume of pole = Volume of larger cylinder + Volume of smaller cylinder
=πr
1
2
h
1
+πr
2
2
h
2
=(π(12)
2
×220)+(π(8)
2
×60)
=π[144×220+64×60]
=3.14[31,680+3,840]
=3.14×35520=111,532.8 cm
3
Mass of 1 cm
3
iron = 8 g
Mass of 111532.8 cm
3
iron = 11532.8×8=892262.4 g
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