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प्रश्न
A square and an equilateral triangle have a side in common. If side of triangle is `4/3` cm long, find the perimeter of figure formed (see the figure).
उत्तर
As square and equilateral triangle both have a common side, i.e. BC.
So, all the sides of square and triangle will be equal and measure `4/3` cm.
∴ Perimeter of the figure = AB + BD + DE + EC + AC
= 5 × AB ......[Since, all the lengths are equal]
= `5 xx 4/3`
= `20/3` cm
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