Question

please slove this question

Answer 1

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Answer 2

perimeter of triangle= A+ B+C
in equilateral triangle A=B=C
180=3A
A=B=C=60
Heron's formula
Area= root( S*(S-A)*(S-B)*(S-C)
where S is semi perimeter of triangle
area=root(90*30*30*30)
area= 900* root 3=1558.85 sq.cm