Page 69 - Mathematics Class - X

Assertion-Reason Based Questions
Assertion-Reason Based Questions
Directions for Questions 1 to 2: In each of the questions given below, there are two statements marked as
Assertion (A) and Reason (R). Mark your answer as per the codes provided below:
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.

(d) A is false but R is true.
Q. 1. Assertion (A) : If two tangents are drawn to a circle from an external point, they subtend equal
angles at the centre of circle.
Reason (R) : A parallelogram circumscribing a circle is a rhombus.
Q. 2. Assertion (A) : AB and CD are two parallel chords of a circle whose diameter is AC, then AB ≠ CD.

Reason (R) : Perpendicular from the centre of a circle bisects the chord.

Crossword Puzzles
Crossword Puzzles
Complete the following crossword puzzles with the help of given hints.

1. Down
2. 1. The ___________ of the circle lies on the
mid-point of the diameter.

2. Two ___________ circles are always
3. similar.
4.
3. Diameter is the double of ___________.

Across

4. ___________ is the longest chord of the
5. circle.

5. Side opposite to 90° in the right-angled
triangle is called ___________.

Answers

Case-Study Based Questions: 1. (c) 2. (a) 3. (a)

Assertion-Reason Based Questions: 1. (b) 2. (d)
Crossword: Down: 1. centre 2. congruent 3. radius

Across: 4. diameter 5. hypotenuse

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