MCQs answers Maths (Standard) class 10 cbse board exam question paper 2023 SET-2 30/2/2 #cbse #math

MCQs answers:
Q1. (b) Q. 2. (b) Q3. (d) Q4. (a) Q5. (c) Q6. (d)
Q7. ((c) Q8. (c) Q9. (d) Q10. (b) Q11. (a)
Q12.(d) Q13. (c) Q14. (d) Q15. (d) Q16. (b)
Q17. (c) Q18. (b) Q19. (d) Q20. (a)
In Q20. Initially assertion (A) seems true as "The sum of either pair of opposite angles of a cyclic quadrilateral is 180 degree". but...A quadrilateral is called cyclic quadrilateral if all the four vertices of it lie on a circle. In the Assertion of this question "PA and PB are tangents drawn from an external point P to the circle, then the quadrilateral AOBP is not cyclic"... and Assertion A seems false and option (d) seems correct.....but we should consider .... "To construct the tangents from a point outside a circle, we draw a circle by taking the distance between centre and the given point"... after that we draw two tangents...in this case the quadrilateral formed is cyclic and Assertion A is correct.... we may refer to Construction 11.3 of chapter 11 of NCERT...the final decision will be depending upon the marking scheme of CBSE.... Thanks

for information ....To all my friends.....

[DrakDoesClips]

Bro, the 20th one. A cyclic quadrilateral is a quadrilateral which has all its vertices on the circumference of the circle. Hence, the one mentioned is not a cyclic quadrilateral. Its a quadrilateral formed by the tangents from a same external point. So the answer is d) Assertion is false but Reason is true