An acute angle is an angle that measures less than .
Acute angles can appear in triangles, parallelograms, and other geometric shapes where there is an angle less than degrees.
Acute angle
![A1- acute angle](/_ipx/f_png,s_500x453/https://cdn.tutorela.com/images/A1-_acute_angle.width-500.png)
Which of the 4 angles presented in the figure corresponds to the description of the acute angle?
![what is the definitions of 4 angles](/_ipx/f_png,s_500x505/https://cdn.tutorela.com/images/what_is_the__Definitions_of_4__angles.width-500.png)
The correct answer is B) 40°