Question

find X in the given figurefind X in the given figure then find Angle B and angle BOC

Answer 1

op1)In the fist figure, the sum of all angles is 360°.

115°+95°+7°+2x°+3x°=360°
217°+5x°=360°
360°-217°=5x°
143°=5x
28.6=x

Angle AOB=3x°=(3×28.6)°=85.8°
Angle BOC=2x°=(2×28.6)°=57.2°

2)The sum of all the angles is equal to 360°

110°+26°+74°+x°=360°
210°+x°=360°
360°-210°=x°
150°=x°

Angle AOD=x°=150°