Page 78 - Mathematics Class - X

Assertion-Reason Based Questions
Assertion-Reason Based Questions
Directions for Questions 1 to 3: 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) : In a circle of radius 6 cm, angle of a sector is 60° then the area of the sector is
6
18 cm .
2
7
Reason (R) : Area of circle with radius r is πr .
2
7
Q. 2. Assertion (A) : If the radius of circle is cm, then the area of circle is 49 cm .
2
π
Reason (R) : If r is a radius of a circle then area of circle is 2πrl.

Q. 3. Assertion (A) : If a wire of length 22 cm is bent in the shape of a circle then area of circle so
formed is 40 cm .
2
Reason (R) : Circumference of circle = length of wire

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

1. Down
1. __________ radius of the circle you can draw.

3. Diameter = ___________ × radius.
2. 3.
4. Area of circle = ___________ of the base of
cylinder.
4.
Across

5. 2. Vertical distance from top to bottom is called
___________.

5. Distance around the boundary of circle is
called ___________.

Answers

Case-Study Based Questions: 1. (b) 2. (c) 3. (a) 4. (d)

Assertion-Reason Based Questions: 1. (b) 2. (c) 3. (d)

Crossword: Down: 1. infinite 3. two 4. area
Across: 2. height 5. circumference

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