Question

a side of an isosceles right angled triangle is x find its hypotenus

Answer 1

We know that in an isosceles triangle two sides are equal so, in this right angled triangle : base = perpendicular

Using PGT:-

(B)²+(P)²=(H)²
x²+x²=H²
2x². =H²
(✓2x²)=H
(√2)x=H