Geometry

Question Analysis

This question is about identifying the measurement of an acute angle from a set of options. The main focus is on understanding the definition of an acute angle and differentiating it from other types of angles.

 

Key Concept Explanation

An acute angle is defined as an angle that measures less than 90°. In contrast, a right angle measures exactly 90°, an obtuse angle measures greater than 90° but less than 180°, and a straight angle measures 180°.

 

Step - by - Step Solution

1. Examine each option and compare its value to the range for acute angles (less than 90°).

2. Determine which option falls within this range.

 

Option Analysis

67°: Since 67° is less than 90°, it is an acute angle and the correct answer.

90°: This is the measure of a right angle, not an acute angle.

130°: As it is greater than 90° and less than 180°, it is an obtuse angle.

180°: This is the measure o...