{ABCD} is a trapezium in which {AB} is parallel to DC. The vertices A, B, C and D pass through a circle. Which of the following are correct? 1. \cdot {AD}= {BC}. 2. \angle {A}+\angle {C}=.180^{\circ} 3. \angle {A}+\angle {D}=180^{\circ} Select the correct answer using the code given below:

UPSC CDS 2 2022 Math Paper

Question : 8 of 100

Marks: +1, -0

ABCD is a trapezium in which AB is parallel to DC. The vertices A,B,C and D pass through a circle. Which of the following are correct?
1. ⋅AD=BC.
2. ∠A+∠C=.180∘
3. ∠A+∠D=180∘
Select the correct answer using the code given below:

'Only 1 and 2
Only 2 and 3
Only 1 and 3
1,2 and 3

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