Cyclic Quadrilaterals

In the figure,
x = (no need to input unit in your answer)

In the figure,

x =

• 20°

• 40°

• 80°

• 140°

∠BCD =

• 20°

• 30°

• 40°

• 50°

In the figure,
x = (no need to input unit in your answer)

The exterior angle of a cyclic quadrilateral...

• is the sum of the opposite two interior angles

• equals the angle at the circumference subtended by arcs of the same length

• equals the opposite interior angle

• is twice the opposite interior angle

Which of the following pairs of angles is/are equal?

• a and f

• b and d

• c and e

• d and g

In the figure,
y = (no need to input unit in your answer)

y is the opposite interior angle corresponding to ______.

• n

• m

• x

• z