Question

Find the x value in the fig ​

Answer 1

Step-by-step explanation:

angle ADB+angle BDC=180. ..... angles in linear pair

80°+ angle BDC=180°

angle BDC=180-80

angle BDC=100°

In triangle DBC,

angle BDC+angle DCB+angle DBC=180°. ....sum of angles of triangle

100+50+X=180

150+X=180

X=180-150

X=30°