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Let the diameter of the given cylinder be '2x' cm So, height of the cylinder = (2x - 3) cm So, radius of the cylinder = 2x ÷ 2 = 'x' cm Total surface area of the cylinder = 2πr(r + h) {Where 'r' and 'h' is radius and height of the cylinder} ATQ; 792π = 2 X π X x X {x + (2x - 3)} Or, 396 = x X (3x - 3) Or, 132 = x X (x - 1) Or, 132 = 12 X 11 So, x = 12 So, diameter of the base of the cylinder = 12 x 2 = 24 cm
5, 5, 15, 75, ?, 4725
8, 24, 48, 80, ?, 168
8 13 36 123 ? 2585
250, 279, 311, 349, 396, ?
840, 2520, 630, 3150, ?, 3675
12, 24, 46, 78, 120, ?
81, 41, 42, 64.5, ?, 330
8, 58, 75, 94, 115, ?
200 ? 96 38.4 7.68 0