Advertisements
Advertisements
प्रश्न
In figure, if ∠AOB = 125°, then ∠COD is equal to ______.
पर्याय
62.5°
45°
35°
55°
उत्तर
In figure, if ∠AOB = 125°, then ∠COD is equal to 55°.
Explanation:
ABCD is a quadrilateral circumscribing the circle
We know that, the opposite sides of a quadrilateral circumscribing a circle subtend supplementary angles at the center of the circle.
So, we have
∠AOB + ∠COD = 180°
125° + ∠COD = 180°
∠COD = 55°
APPEARS IN
संबंधित प्रश्न
In the following figure, O is the centre of the circle and AB is a tangent to it at point B. ∠BDC = 65°. Find ∠BAO.
Four alternative answers for the following question is given. Choose the correct alternative.
If two circles are touching externally, how many common tangents of them can be drawn?
In fig., AB and DC are two chords of a circle with centre O. these chords when produced meet at P. if PB = Bern, BA = 7cm and PO = 14.5cm, find the radius of the circle.
In the following fig. , AC is a transversal common tangent to tvvo circles with centres P and Q and of radii 6cm and 3cm respectively. Given that AB = 8cm, calculate PQ.
In followinf fig., two concentric circles with centre 0 are of radii 5 cm and 3 cm. from an external point P, tangents PA and PB are drawn to these circles. If AP = 12cm, find BP.
Two equal chords AB and CD of a circle with center O, when produced meet at a point E, as shown in Fig. Prove that BE = DE and AE = CE.
The distance between two parallel tangents of a circle of radius 4 cm is ______
Find the value of ∠DCE.
In the given figure, PT is a tangent to the circle at T, chord BA is produced to meet the tangent at P. Perpendicular BC bisects the chord TA at C. If PA = 9 cm and TB = 7 cm, find the lengths of:
- AB
- PT
The distance between two tangents parallel to each other of a circle is 13 cm. Find the radius of the circle.
