Chapter 10 – Circles
Write True or False and justify your answer in each of the following: 2. Two chords AB and AC of a circle with centre O are on the opposite sides of OA. Then ∠OAB = ∠OAC .
02
Jul
Write True or False and justify your answer in each of the following: 2. Two chords AB and AC of a circle with centre O are on the opposite sides of OA. Then ∠OAB = ∠OAC . Write True or False and justify your answer in each of the following: 2. Two chords AB and [...]
Write True or False and justify your answer in each of the following: 1. Two chords AB and CD of a circle are each at distances 4 cm from the centre. Then AB = CD.
02
Jul
Write True or False and justify your answer in each of the following: 1. Two chords AB and CD of a circle are each at distances 4 cm from the centre. Then AB = CD. Write True or False and justify your answer in each of the following: 1. Two chords AB and CD of [...]
10. In Fig. 10.9, ∠AOB = 90º and ∠ABC = 30º, then ∠CAO is equal to:
02
Jul
10. In Fig. 10.9, ∠AOB = 90º and ∠ABC = 30º, then ∠CAO is equal to: ∠AOB = 90º and ∠ABC = 30º 10. In Fig. 10.9 then ∠CAO is equal to: July 2, 2021 Category: Chapter 10 - Circles , Maths , NCERT Class 9 ,
9. In Fig. 10.8, BC is a diameter of the circle and ∠BAO = 60º. Then ∠ADC is equal to :
02
Jul
9. In Fig. 10.8, BC is a diameter of the circle and ∠BAO = 60º. Then ∠ADC is equal to : 9. In Fig. 10.8 BC is a diameter of the circle and ∠BAO = 60º. Then ∠ADC is equal to : July 2, 2021 Category: Chapter 10 - Circles , Maths , NCERT Class [...]
8. ABCD is a cyclic quadrilateral such that AB is a diameter of the circle circumscribing it and ∠ADC = 140º, then ∠BAC is equal to:
02
Jul
8. ABCD is a cyclic quadrilateral such that AB is a diameter of the circle circumscribing it and ∠ADC = 140º, then ∠BAC is equal to: 8. ABCD is a cyclic quadrilateral such that AB is a diameter of the circle circumscribing it and ∠ADC = 140º then ∠BAC is equal to: July 2, 2021 [...]
7. In Fig. 10.7, if ∠DAB = 60º, ∠ABD = 50º, then ∠ACB is equal to:
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Jul
7. In Fig. 10.7, if ∠DAB = 60º, ∠ABD = 50º, then ∠ACB is equal to: ∠ABD = 50º 7. In Fig. 10.7 if ∠DAB = 60º then ∠ACB is equal to : July 2, 2021 Category: Chapter 10 - Circles , Maths , NCERT Class 9 ,
6. In Fig. 10.6, if ∠OAB = 40º, then ∠ACB is equal to :
02
Jul
6. In Fig. 10.6, if ∠OAB = 40º, then ∠ACB is equal to : 6. In Fig. 10.6 if ∠OAB = 40º then ∠ACB is equal to : July 2, 2021 Category: Chapter 10 - Circles , Maths , NCERT Class 9 ,
5. In Fig.10.5, if AOB is a diameter of the circle and AC = BC, then ∠CAB is equal to:
02
Jul
5. In Fig.10.5, if AOB is a diameter of the circle and AC = BC, then ∠CAB is equal to: 5. In Fig.10.5 if AOB is a diameter of the circle and AC = BC then ∠CAB is equal to: July 2, 2021 Category: Chapter 10 - Circles , Maths , NCERT Class 9 ,
4. In Fig.10.4, if ∠ABC = 20º, then ∠AOC is equal to:
02
Jul
4. In Fig.10.4, if ∠ABC = 20º, then ∠AOC is equal to: 4. In Fig.10.4 if ∠ABC = 20º then ∠AOC is equal to: July 2, 2021 Category: Chapter 10 - Circles , Maths , NCERT Class 9 ,
3. 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 :
02
Jul
3. 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 : 3. If AB = 12 cm B and C is BC = 16 cm and AB is perpendicular to BC then the radius [...]