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7 houses of rome
The formula for right cylinder volume is: pi * r * r * h = volume where r = the radius (1/2 diameter) and h = the height/length. So, pi * 3 * 3 * 7 =197.920337
Designate the radius by r and the height by h. For any cylinder, volume = 2 X pi X r X h. From the problem statement, h = 7/5 r. Substituting this into the general volume equation yields 2 X pi X r X (7/5)r = volume (stated to be 550 cm3). Multiplying by 5 and collecting like terms yields 2 X pi X 7 r2 = 2750; r2 = 2750/[(2)(pi)(7)] = about 62.526; r = about 7. 9 cm.
Congratulations! You already have. h = S+r
If v = r * h then> r = v / h