Question

The area of the isosceles triangle isif the perimeter is 11 cm and the base is 5 cm.

Answer 1

let each of the equal sides be = x

then 5+x+x =11 then each equal side = 6/2=3 cm

so, the area={b(√4a²-b²)}/4 = 4.15 cm² (approx.)

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