Question

in a quadrilateral if ab = bc = cd = da and ∠acb = 40o , find the value of ∠adb.​

Answer 1

Answer:

angle adb is equal to 40 degree

Step-by-step explanation:

1) Since opposite sides of the quadrilateral are equal, we know that the figure is a parallelogram.

2) Since it is a parallelogram, we know opposite angles are equal.

3) We know angle acb and angle adb are opposite because they lie between the sides points a and b.

Therefore the are equal. And therefore, angle adb = 40°