(90 - 78)/2 ie 6o
An angle of 78 degrees is an acute angle
An angle of 78 degrees is an acute angle because it is greater than 0 but less than 90 degrees.
90-78= 12 degrees
An acute angle.
An angle whose measure is 78 degrees!
90-78 = 12 degrees
(90 - 78)/2 ie 6o
63 degrees because 180 -39 -78 = 63
78
The 4th angle is: 360-90-145-78 = 47 degrees
It is: 47 degrees
110 degrees.
51 degees
An angle of 78 degrees is an acute angle
47
78 degrees I believe.