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Question

Determine the number of pentagons in the given figure.
309420_59cfe551099c4de79eef7915e11a3bc8.png

A
5
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B
6
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C
8
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D
10
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Solution

The correct option is D 10
The figure may be labelled as follows :
In this case, six pentagons have been formed by the combination of three triangles and two rhombuses - ADFHJ, CFHJL, EHJLB, GJLBD, ILBDF and KBDFH.
Four other pentagons are formed by the combination of three triangles and one rhombus LCFHM, LBEHM, BKFHM and BLlFM. Thus, there are 10 pentagons in the figure.
480191_309420_ans_b7a6fcdae4424dafbb6ce35f1a058aa9.png

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