Question

in triangle DEF, angle D=60° ,angle E=70° and the bisector of angle E and angle F meet at O. Find angle F and angle EOF.​

Answer 1

Answer:

Step-by-step explanation:

1/2 of angle E is 35 degree.

Angle E+ angle D+ angle F= 180 (angle sum property)

60+70+ angle F= 180

Therefore, angle F=50 degrees

1/2 of angle F= 25 degrees

Therefore angle O= 180-(35+25)

=180-60

= 120 degrees

Answer 2

Answer:

angle f=50 ,

angle Eof =85

Step-by-step explanation:

angle D+angle E+angleF = 180....(sum of all angles of triangle is 180)

therefore,

60+angle E +70=180

130+ angle E =180

angle E = 180-130

= 50

E is bisector

angle DEO=angle OEF

angle OEF = 25

E +O+F=180

angle EOF =85