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A sign board indicating SCHOOL ZONE is i...

A sign board indicating SCHOOL ZONE is in the form of an equilateral triangle with perimeter 120cm. Find the length of the side of the equilateral triangle.

Text Solution

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Let the side of the board be 'a' cm. Since the board is in the shape of an equilateral triangle,
Perimeter `=3a`
`therefore 3a=120`
`a=(120)/(3)=40cm`
`therefore` The length of the side of the board `=40cm`
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