Question

Find The Value Of x°

Answer 1

take it as a whole Triangle do not take the line BD. consider a b c is the triangle, use angle sum property
20°+80°+angle b=180°
so angle b is equal to 70 degree, half of angle b is equal to 35 degree so in the triangle bdc Angle b is equal to 35° now using angle sum property 80 degree + 35 degree plus x degree is equal to 180 degree show 115 degree plus x is equal to 180 degree x is equal to 65 degree

Answer 2

HERE IS YOUR ANSWER :-

X = 90°