Question

1. find the measure of the angle with a as the vertex to the nearest degree. (click the \angle\ tool using the icon hint: if an angle is very small, the applet will tell you the angle measure around the opposite side of the angle. remember there are 360° around any point. a. 10° b. 90° c. 60° d. 45°

Explanation:

The angle at vertex A is very small (as the two lines from A to B and A to C are close together). Among the options, \(10^\circ\) is the smallest and fits the description of a very small angle. The other options (\(90^\circ\), \(60^\circ\), \(45^\circ\)) are larger angles, inconsistent with the visual of close - together lines from A.

Answer:

A. \(10^\circ\)