is an acute angle triangle Share with your friends Share 2 Lalit Mehra answered this Hi! Here is the answer to your question. A triangle whose all angles are acute is an acute angle triangle. ∆ABC is an acute triangle as each of its angles is less than 90°. Cheers! 2 View Full Answer Eisha Hussain answered this no it is not a triangle. It is an angle that is less than 90 degrees. -1 Kumar Shree Rishikesh answered this It is a type of angle in which the measure of the angle will be between 0 to 90 degrees...Hope dis helps..... 0 Bhavana Rammohan answered this A triangle where all the 3 angles are acute is called an acute angled triangle. 1 Swarrangi Patil answered this thanx 0