Answer:
4
Step-by-step explanation:
Look at the picture.
At the beginning we have to calculate what part of the angle 360° is the given angle 75°.
[tex]\dfrac{75}{360}=75:360=0.2[/tex]
The same part of the circumference of the circle is the arc defined by this central angle.
The circumference C = 20.
Therefore
[tex]x=0.2\cdot20=4[/tex]
