Question

find the unknown angle a and b in each of the following figures. (f) part​

Answer 1

I THINK THE QUESTION IS INCOMPLETE DEAR...✨✨✨

Here, ABCD is a quadrilateral.

∠A=90

o

,∠B=120

o

,∠C=2x,∠D=x [ Given ]

We know that sum of angles of quadrilateral is 360

o

.

∴ ∠A+∠B+∠C+∠D=360

o

⇒ 90

o

+120

o

+2x+x=360

o

⇒ 3x+210

o

=360

o

⇒ 3x=150

o

∴ x=50

o

⇒ ∠C=2x=2×50

o

=100

o

⇒ ∠D=x=50

o