Area of square = (length of side)2 = (10cm)2 = 10*10 cm2 = 100 cm2
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There are 5 linear measures given. If that implies that the shape is a pentagon, there is no way to answer the question with out additional information about the angles in the pentagon. A triangle is the only polygonal shape whose area is uniquely determined by the length of its sides.
The base is an equilateral triangle and so the volume works out as follows:- 0.5*122*sin(60)*10 = 623.538 cubic cm to 3 decimal places
It is a right angle triangle and its largest angle is 90 degrees
Area of a trapezoid = 0.5*(sum of parallel sides)*height
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