Three sides of a triangle are 1⅔ cm, 2¾cm and 2 3 cm. Find its perimeter. —
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1rst side of the triangle - 1⅔ cm
2nd side of the triangle - 2¾cm
3rd side of the triangle - 23 cm (For now , considering the 3rd side of the triangle 23 cm as it is not properly mentioned in the question.
We know that , Perimeter of a triangle = Sum of all sides of that triangle
Here , Perimeter of triangle = 1⅔ cm + 2¾cm + 23 cm
= 5/3 + 11/4 + 23
= 20/12 + 33/12 + 253/12
= 306/12
= 25.5 cm
Hence , the perimeter of the triangle with 3 sides (1⅔ cm, 2¾cm and 23 cm) is 25.5 cm .
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