An acute angle a, known cosa = 1 / 3, a is how many degrees of angle? Such as the title

An acute angle a, known cosa = 1 / 3, a is how many degrees of angle? Such as the title


A = 70.53 degrees



The difference between horizontal angle and obtuse angle is () angle


Acute angle



What angle is half of a horizontal angle, what angle is twice of a horizontal angle, and what angle is half of an obtuse angle
Come on


Half of a horizontal angle is a right angle, twice of a horizontal angle is a circumference angle, and half of an obtuse angle is an acute angle