若角A3OA2-角A2OA1=角A4OA3=……=角A11OA10-角A10OA9=2

问题描述:

若角A3OA2-角A2OA1=角A4OA3=……=角A11OA10-角A10OA9=2
求角A2OA1的度数.

A12OA11=2
A4OA3=2
360/4=90
90/2=45
A3OA2=45+1=46
A2OA1=45-1=44