Question

please answer my question fastly......find the value of x and y

Answer 1

Answer :

(ii) y = 50° ( Angles opposite to equal sides are equal )

x = y + 50° ( By exterior angle property )

  = 50° + 50°

  = 100°

(iii) y = 30° ( vertically opposite angle )

x + 2y = 180° ( angle sum property in a triangle )

x + 60° = 180°

x = 180-60

x = 120°

(v) y = 180 - 30 ( adjacent exterior angle )

y = 150°

Assuming the triangle to be an right angled triangle.

x = 180-90-30 ( Using angle sum property )

x = 180-120

x = 60°

(vi)

80 + x + x = 180° ( Using angle sum property , the vertically opposite angles, angles opposite to equal sides are equal )

80 + 2x = 180

2x = 100

x = 50°

x + y = 180° ( Adjacent exterior angle of a triangle )

50 + y = 180

y = 130°