The degree measure of angle ∠ bac will be 70°. Option C is correct.
What exactly is an angle?
The angle is the distance between the intersecting lines or surfaces. In addition, the angle is expressed in degrees. The angle is 360 degrees for a full revolution.
Given expression;
[tex]\rm cos^{-1}(\frac{3.4}{10})=x \\\\ x = cos^{-1}(0.34) \\\\ x = 70.12^0[/tex]
The degree measure of angle ∠bac will be 70°.
Hence option C is correct.
To learn more about the angle, refer to
https://brainly.com/question/15767203.
#SPJ1
