Question

ABCD is a quadrilateral inscribed in a circle, as shown below:

Answer 1

Answer:

Option 4: (2x + 16)° + (x)° = 180°

Step-by-step explanation:

See the attached figure.

For a quadrilateral inscribed in a circle

The opposite angles are supplementary.

So, ∠D + ∠B = 180°

From the figure:

∠B = x°  and ∠D = (2x+16)°

∴  (2x + 16)° + (x)° = 180°