Question

find the area of an isosceles triangle having base 2cm and the length of one side is equal side is 4cm

Answer 1

s =a+b+c/2
   =4+4+2/2
   =5cm

area=√s(s-a)(s-b)(s-c)
      =√5(1)(1)(3)
        =√15
        =3.9 cm²  (approx)

Answer 2

Answer:

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