Question

In an issociles triangle Each equal side is twice
then the base of triangle if perimeter of triangle is
30 cm then find it's area​

Answer 1

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Answer 2

Formula of perimeter of isosceles triangle = 2x (as both sides are of same lenght) + x

So, x + 2x + 2x = 30cm

5x = 30cm

x=30÷5=6cm

1st side of triangle = 6cm

2nd side = 6×2=12 (equal side)

3rd side = 6×2=12 (equal side)

Area of triangle = 34.86cm²