A conical steel part with a bottom diameter of 4cm is 8 / 9 of its height. If the steel weight per cubic centimeter is 7.8G, how many grams does the part weigh Results keep integers emergency

If the bottom diameter is 8 / 9 of the height, then the height is 9 / 8 * 4 = 9 / 2 cm
Cone volume = base area * height * 1 / 3 = square of radius * π * height * 1 / 3 = 2 ^ 2 * π * 9 / 2 * 1 / 3 = 6 π cubic centimeter
Mass = density * volume = 7.8 * 6 π≈ 147g

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