the volume of a cylinder is 94.2cm³ and it's height is 6 cm. what is it's radius?? please help
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Volume of cylinder = 94.2 cm3
Height of cylinder = 6 cm
Now we have to find out the radius of base of cylinder. We know that :- Volume of cylinder = r² h Let radius of given cylinder be x. According to the question
94.2 = 1 * x2 x 6
94.2 = (22/7) x x² x 6
94.2x7 = 22 x x² x 6
659.4 = 132x x²
659.4/ 132 = x²
4.9 = x2
√(4.9) = x
2.2 ( approx) = x
Therefore, radius = 2.2 cm
hope you understand
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