Question

which angles are less than 90 degrees?
a. right angle
b. obtuse angle
c. acute angle
d. straight angle

Explanation:

• A right angle is exactly 90 degrees.
• An obtuse angle is greater than 90 degrees and less than 180 degrees.
• An acute angle is less than 90 degrees.
• A straight angle is 180 degrees.

Answer:

C. Acute Angle