Question

which angle is an acute angle?
a. an angle measuring 265°
b. an angle measuring 325°
c. an angle measuring 125°
d. an angle measuring 85°

Explanation:

Step1: Recall acute angle definition

An acute angle is an angle whose measure is greater than \(0^\circ\) and less than \(90^\circ\).

Step2: Analyze each option

• Option A: \(265^\circ\) is greater than \(180^\circ\), not acute.
• Option B: \(325^\circ\) is greater than \(180^\circ\), not acute.
• Option C: \(125^\circ\) is greater than \(90^\circ\) (obtuse), not acute.
• Option D: \(85^\circ\) is between \(0^\circ\) and \(90^\circ\), so it is acute.

Answer:

D. An angle measuring \(85^\circ\)