Each side of equilateral triangles is 10.5 cm the perimeter 7 the triangle is:
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Answer:
3×10.5= 31.5
Step-by-step explanation:
as we know that all sides of equilateral triangle are equal so
Perimeter of equilateral triangle =Side+Side+Side
3×Side
Hence, answer is 3×10.5=31.5
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