THE DIAmeter of the base of cylinder is 0.4 cm is height 3/4 of its base radius find the volume of cylinder give answer in liters

Diameter of the cylinder = 0.4 m => radius (r) = 0.2 meter

Height of the cylinder (h) = 0.2x3/4 = 0.15 meter

Volume of the cylinder = πr2h

= 3.14 x (0.2)2 x 0.15

= 0.01884 cube meter

1 cube meter = 1000 litres

Volume of the cylinder in litres = 0.01884x 1000 = 18.84 litres

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

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