For an isosceles right angles triangle having each of equal sides ‘a’ , we have
I. Area =a2
II. Perimeter = (2 +)a
III. Hypotenuse = 2a
Which of the following is true?
We know that,
Area of triangle =
=
=
Now, Hypotenuse =
=
=
Perimeter = a + a +
= 2a +
= a (2 + )
∴ I and II are true
Hence, option (c) is correct