Question

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Answer 1

Answer:

a=6cm, b=6cm, c=6cm

∴s=2a+b+c=26+6+6=9cm

∴  Area of the equilateral triangle 

=s(s−a)(s−b)(s−c)

=9(9−6)(9−6)(9−6)

=9(3)(3)(3)

=93cm2

Answer 2

Answer:

then all the sides are 6cm and the semiperimeter is a+b+c/2 which is 9 and you can do the other steps using herons formula