Find the area of the triangle with sides 21 cm, 16 cm and 13 cm. Also, find the perimeter of an equilateral
triangle equal in area to this triangle
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Explanation:
Answer in the attachment
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![](https://hi-static.z-dn.net/files/da9/8fca0f9d3d9679bed6bd0e2c07922038.jpg)
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Answer :-
Refer to the attachment
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