Question

in cyclic quadrilateral ABCD ,m angle A = 80, then find m angle C .

Answer 1

angle C = 80°
As we know in a cylic quadrilateral sum of opposite angle is 180°
So,
angle A + angle C = 180°
angle A + 80° = 180°
angle A = 180°-80°
angle A = 100°


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Answer 2

Answer:

The measure of angle C = 100°

Step-by-step explanation:

Given data

In cyclic quadrilateral ABCD

measure of angle A = 80°  

here we need to find measure of angle C    

In a cyclic quadrilateral ABCD,

sum of opposite angles = 180°

⇒  ∠A + ∠D = 180°

⇒   80° + ∠C = 180°

⇒ ∠C = 100°