Division
A 90 degree angle
What is a right angle
5 * 1/4
What is 5/4 or 1 1/4
736 * 5
What is 3,680
A 180 degree angle
What is a straight angle
6 * 2/3
What is 12/3 or 4
630/4
What is 157 R 2
An angle less than 90 degrees
What is an acute angle
8 * 2/3
What is 16/3 or 5 1/3
2 3/8 + 5 6/8
What is 7 9/8
719/8
What is 89 R. 7
An angle greater than 90 degrees
What is an obtuse angle
5 * 3/4
What is 15/4 or 3 3/4
6 1/3 + 7 2/3
What is 13 3/3 or 14
BONUS An angle more than 180 degrees but less than 360 degrees
What is a reflex angle
7 * 1/2
What is 7/2 or 3 1/2
890/4
What is 222 R 2