1.

\angle A + \angle B + \angle C + \angle D + \angle E + \angle F

Answer»

In triangle ABE and triangle DCF,ANGLE A+ANGLE B+ANGLE E=180(ANGLE SUM PROPERTY)-(1)ANGLE D+ANGLE C+ANGLE F=180(ANGLE SUM PROPERTY)-(2) (1)+(2)ANGLE A+ANGLE B+ANGLE E+ANGLE D+ANGLE C+ANGLE F=180+180ANGLE A+ANGLE B+ANGLE C+ANGLE D+ANGLE E+ANGLE F=360



Discussion

No Comment Found