15*15 = 225 square centimetres.
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1m*2m*15cm = 0.3 metres3 = 300 Litres
area = length x width = 20 x 15 = 300 sq cm
first find the unknown angle, 180o - (62o+62o) = 56o next use the law of sines to find the other side: sin 62o / 15cm = sin 56o / X Solving for x, X = 14.08 cm
15cm 12cm
Surface area of a cylinder = (pi) x (diameter of the circular end) x (length)