mesures of one side of quadrilateral triangle is 10 cm find perimeter of triangle
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30cm
Step-by-step explanation:
It is equilateral. not quadrilateral
It is an equilateral triangle. so, AB = BC = CA
=> BC = CA = 10cm
perimeter of an equilateral triangle = AB + BC + CA
=> 10 + 10+ 10
=> 30cm
Therefore, perimeter of ∆ABC = 30cm
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