Question

IN TRIANGLE DEF ANGLE D IS EQUAL TO 40 DEGREE AND ANGLE E IS EQUAL TO 70 DEGREE AND BISECTORS OF ANGLE E AND ANGLE F ARE INTERSECTING AT O . FIND ANGLE F AND ANGLE EOF

Answer 1

d+e+f =180°
40°+70°+f =180°
110°+f =180°
f=70°
given bisectors of e and f joins at o,in triangle eof,
1/2(70°)+1/2(70°)+eof =180°
35°+35°+eof =180°
70°+eof=180°
eof=110°