Q2 of 23 Page 274

In the figure, ∠BAD = 40° then find ∠BCD.

Given, ∠BAD = 40°


Join BD, which is a chord.


We know “Two or more angles subtended by the chord at the circumference are same”.


∠BCD = ∠BAD = 40°


More from this chapter

All 23 →
5

In the adjacent figure, AB is a chord of circle with centre O. CD is the diameter perpendicualr to AB. Show that AD = BD.

 1

In the figure, ‘O’ is the centre of the circle. ∠AOB = 100° find ∠ADB.

 3

In the figure, O is the centre of the circle and ∠POR = 120°. Find ∠PQR and ∠PSR

 4

If a parallelogram is cyclic, then it is a rectangle. Justify.