Question

Under which angle conditions could a triangle exist? Check all that apply.

3 acute angles
2 acute angles, 1 right angle
1 acute angle, 1 right angle, 1 obtuse angle
1 acute angle, 2 obtuse angles
2 acute angles, 1 obtuse angle

Answer 1

Answer: 3 acute angles

and 2 acute angles, 1 obtuse angle

and 2 acute angles, 1 right angle

Explanation:

the key is just to imagine it

also you have to know that right angle is 90° acute is less than 90° and obtuse is more than 90°