In the given figure, all line segments of the shaded portion are of the same length and at right angles to each other. The same can be cut out of a board of side 10 cm. What is the area of the shaded portion?
- (a)36 cm²
- (b)48 cm²
- (c)52 cm²
- (d)64 cm²
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Official answer(c) 52 cm²