Question

Classify each angle as obtuse, right, acute, or NEI (not enough information)

Answer 1

The angles, when classified as acute, obtuse, right, or NEI would be:

c. ∠ 3 : Acute

d. ∠ 4 : Obtuse

h. ∠ 8 : Obtuse

i. ∠ 9 : Obtuse

How to classify angles ?

An acute angle is an angle that measures less than 90 degrees. An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees. A right angle is an angle that measures exactly 90 degrees.

Measure of angle ∠3 is less than 90 degrees. Measure of angle ∠4 is more than 90 degrees but less than 180 degrees. This same is true for ∠ 8 and ∠ 9.