Question

What is the value of x, in the given figure :
(a) 40°
(b) 80
(c) 140°
(d) 100​

Answer 1

Answer:

c)140°

Step-by-step explanation:

ABCD is a cyclic quadrilateral

We know that opposite angles of a cyclic quadrilateral sum up to 180°

⇒ ∠B + ∠D = 180°

⇒ 40 + x = 180°

⇒ x = 180 - 40

⇒ x = 140°

Answer 2

Answer:

40°

Step-by-step explanation:

In a cyclic quadrilateral sum of adjacent angles are 180°

so angle c = 180-40=140°

then x will be 180-140=40°

therefore the answer is 40°

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