Acute Angled Triangle

Right Angled Triangle	Acute Angled Triangle	Obtuse Angled Triangle	Equilateral Triangle	Isosceles Triangle
Scalene Triangle

A Triangle whose each angle is less than 90 degree is known as Acute Angled Triangle In other words, A Triangle having all three acute angles is called Acute Angled Triangle In the above diagram, All three angles of Triangle PQR are less than 90 degree, So, we can say Triangle PQR is an Acute Angled Triangle.