Question

If the area of an isoceles triangle is 8m^2, then it's perimeter is _____.​

Answer 1

Answer:

We have an isosceles triangle whose area is 8 cm^2.

Well,in isosceles triangle base and height are equal. Let each of them be x.

8 cm^2=1/2 × x × x

16 cm^2 =x^2 or x =root 16 cm^2  or 4 cm

Now, h^2=b^2+p^2

        h^2=4^2+4^2

        h=root32 cm^2 or 4 root2 cm

Now, perimeter of isosceles triangle=4 cm+4 cm+4 root2 cm

                                                               =8+4 root2 cm^2

Hope  it helps!!!!