The of 90000 is 9000.
We have a number - 90000
We have to determine part of this number.
The part of 100 will be -
= 20
According to the question, we have -
Number - 90000
Therefore, 1/10 of 90000 will be -
= 9000
Hence, of 90000 is 9000.
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the volume of a right-circular cylinder is V = πr²h, however, this cylinder on 6) is not a right-circular cylinder, meaning, the its altitude is not going straight up making a right-angle with the ground, is all slanted.
now, let's recall Cavalieri's Principle,
solids with the same altitude and cross-sectional areas at each height have the same volume.
so, though this cylinder is slanted, its cross-sectional areas are the same as a right-circular cylinder and thus its volume is also V = πr²h, so yes, is correct.
7)
the area of a parallelogram is A = bh.
so the volume of this solid will simply be the area of the upfront parallelogram times the depth or length of 5x.