Question

Q4. One of the pair of opposite angles of a cyclic quadrilateral is 60 degree find other angle? 

120 degree

60 degree

90 degree

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Answer 1

Step-by-step explanation:

AB // CD

AC // BD

Given = <C = 60 °

< C + < D = 180° ( Are Supplementary )

60° + < D = 180°

< D = 180° - 60°

< D = 120°

< B + < D = 180° ( Supplementary )

< B + 120° = 180°

< B = 180° - 120°

< B = 60°

< A + < B = 180° ( Supplementary )

< A + 60° = 180°

< A = 180° - 60°

< A = 120 °

So the other angle is 120° , 60° , 120°

Answer 2

$\huge\underline\bold\red{Ans}$

120 degree