CTET Solved Paper - RTET Feburary 2011 Paper2
- Option : A
- Explanation : Follows from the definition of alternate angles, the pair (1,8) and (2, 7) are alternate angles.
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- Option : C
- Explanation : Angle subtended by a chord ,n the centre of the circle is twice the angle subtended by it at any point on the circumference.
∴ ɑ = 30°
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108. Which of the follOwing statements is incorrect?
- A
The angle subtended by a chord of a circle at the centre is equal to the angle subtended by the chord at any point of the circumference of a circle.
- B
The lengths of the chords situated at equal distance from the centre of a circle are equal.
- C
The angles subtended by a chord at different points on the circumference of a circle are equal.
- D
The perpendicular drawn from the centre of a circle on a chord, bisects the chord.
- Option : A
- Explanation : The angle subtended by a chord of a circle at the centre is twice the angle subtended by it at any point on the circumference of the circle.
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- Option : D
- Explanation : Area of parallelogram = Base x Altitude
= 5 x 4 = 20 sq cm.
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- Option : B
- Explanation :
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