In the diagram below, P is circumscribed about quadrilateral ABCD. what is the value of x?

The value of the variable x will be 100°. Then the correct option is A.
If the quadrilateral is inscribed in a circle, then the quadrilateral is known as a cyclic quadrilateral.
In the diagram below, P is circumscribed about quadrilateral ABCD.
We know that the sum of opposite angle of a cyclic quadrilateral is 180°.
x + 10° + 70° = 180°
x = 100°
Then the correct option is A.
More about the cyclic quadrilateral link is given below.
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