Question

what is right angled triangle???

Answer 1

if one of the angle in a triangle is 90 degree then it is known as a right angled triangle

Answer 2

$\huge\color{Red}{Hey\: Mate!!}$

here is your answer:

Right Angled Triangle which is commonly referred to as,

$\bf{R}$: Right Angle

$\bf{H}$: Hypotenuse

$\bf{S}$: Side

So basically a triangle which contains a Right Angle (measuring 90°), A hypotenuse and a Side is called A Right Angled Triangle.

hope it helps you!!

$\huge\boxed{Thankyou!!}$