Question

Could someone help me answer this question because I really don't know how to get the answer or solve it thanks

Answer 1

A central angle is an angle made by 2 radii. Seeing as they want the measure of the angle that represents industry pollution, that would be 40% of the total 360 degrees.
40% = 0.4
0.4 × 360 = 144
The measure is 144 degrees.