Question

if the perimeter of an equilateral triangle is 21 cm calculate area of this triangle
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Answer 1

Answer:

fyoaotysp86soydoydoyasuotsiyfhodostlsuogsyislfuIfsptuzfpufzgkxhchdudj

Answer 2

Step-by-step explanation:

you can assume ..

parameter=21

a+b+c=21

area =bh/2

you can assume side of triangle is 7,7,7

so find hight and slove this