Question

Which property is true for ALL acute triangles?

They have three congruent sides.

They have three angles measuring less than 90˚.

They have at least two sides that are congruent to each other.

They have at least two congruent angles that measure less than 90˚.

Answer 1

An acute triangle is a triangle with all angles acute (for example, a triangle with angles 64 ,36, and 80). An acute angle is an angle less than 90 degrees. Also, all angles in a triangle MUST sum to 180 degrees.

Answer 2

Based on above argument, They have three angles measuring less than 90˚.