Question

1. choose the best answer. use your protractor on the monitor to find the measure of the angle.

image of an angle formed by two rays
options:

• 130 degrees
• 40 degrees
• 20 degrees
• 85 degrees

Explanation:

Step1: Recall Protractor Usage

To measure an angle with a protractor, align the protractor's center with the angle's vertex, and one side with the protractor's zero - degree line. Then read the measure where the other side intersects the protractor.

Step2: Analyze the Angle Type

The given angle is an acute angle (less than 90 degrees). So we can eliminate 130 degrees (an obtuse angle). Now we are left with 40, 20, and 85 degrees. By visually inspecting the angle (or using a protractor on the monitor as per the problem's instruction), we can see that the angle is approximately 40 degrees.

Answer:

40 degrees (the option with "40 degrees")