Question 1 :
The lengths of two parallel chords of a circle are 6 cm and 8 cm. If the smaller chord is at distance 4 cm from the centre, what is the distance of the other chord from the centre?

Question 2 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d113f59b460d7261f3c4.PNG' /> In the above figure, if AOB is a diameter of the circle and AC = BC, then $\angle CAB$ is equal to

Question 3 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d115f59b460d7261f3c6.PNG' /> In the above figure, if $\angle DAB=60^{\circ}$, $\angle ABD=50^{\circ}$, then $\angle ACB$ is equal to

Question 4 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d1a8f59b460d7261f49a.png' /> If a line intersects two concentric circles (circles with the same centre) with centre O at A, B, C andD, AB is __________ to CD.

Question 5 :
AD is a diameter of a circle and AB is a chord. If AD = 34 cm, AB = 30 cm, the distance of AB from the centre of the circle is

Question 6 :
The angle subtended by an arc at the centre is __________ the angle subtended by it at any point on the remaining part of the circle.

Question 7 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d120f59b460d7261f3d6.PNG' /> In the above figure, two congruent circles have centres O and O′. Arc AXB subtends an angle of $75^{\circ}$ at the centre O and arc A′YB′ subtends an angle of $25^{\circ}$ at the centre O′. Then the ratio of arcs AXB and A′YB′ is

Question 8 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d113f59b460d7261f3c3.PNG' /> In the above figure, if $\angle OAB=40^{\circ}$, then $\angle ACB$ is equal to

Question 9 :
If AB = 12 cm, BC = 16 cm and AB is perpendicular to BC, then the radius of the circle passing through the points A, B and C is

Question 10 :
Three girls Reshma, Salma and Mandip are playing a game by standing on a circle of radius 5m drawn in a park. Reshma throws a ball to Salma, Salma to Mandip, Mandip to Reshma. If the distance between Reshma and Salma and between Salma and Mandip is 6m each, what is the distance between Reshma and Mandip?