Answer:
15 °
Step-by-step explanation:
The five angles are splitted in the ratio 1:3:5:8:12
The 1st biggest angle is at ratio 12
The 2nd biggest angle is at ratio 8
The 3rd biggest angle is at ratio 5
The 4th biggest angle is at ratio 3.
Time solve for the 4th biggest angle, we will find the sum of the ratios:
Therefore, 1 + 3 + 5 + 8 + 12 = 29
Ratio of 4th biggest angle:
= (3)/(29). * 145
= (3 * 45) / 29
= 3 * 5
= 15 °
