Question
If the curved surface area of a cylinder is 126π cm²
and its height is 14 cm. then, what is the volume of the cylinder?Solution
given - height = 14cm the curved surface area of a cylinder = 126 Ï€ 2Ï€rh = 126Ï€ 2Ï€ × r× 14 =126Ï€ r = 9/2= 4.5 cm so now the volume of the cylinder = Ï€r²h =4.5×4.5×14 × Ï€ =(9×9×7) Ï€/2 =567Ï€/2 =283.5Ï€ cm³Â
612, 487,?, 396, 388, 387
Find the missing number in the given number series.
1, 2, 6, 24, 120, ?What will come in place of the question mark (?) in the following series?
36, 85, ?, 230, 330, 451
Find the missing term in the series:
2, 5, 11, 23, 47, ?
What will come in place of the question mark (?) in the following series?
400, 841, 1202, ?, 1716, 1885
44   45    41   50    ?      59    23
...221, 100, 0, -81, ?
...900 Â Â Â 90Â Â Â 18Â Â Â ? Â Â Â Â 2.16Â Â Â Â 1.08
16, 20, 11, 27, ?, 38
37, 57, 82, ?, 147, 187
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