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Class 10 Mathematics Unit 8 Chords and Arcs of a Circle – Unit Wise Class Test 3 | Punjab Board 2027 Model Papers

Class 10 Math Chapter 8 Test 3

Class 10 Mathematics Unit 8: Chords and Arcs of a Circle – Unit Wise Class Test 3 Exercise No. 8.2 and Review Exercise is a useful practice paper for students preparing for the Punjab Board 2027 Model Papers. This Class 10 Mathematics test covers important concepts related to chords, arcs of a circle, radius, diameter, secant lines, and perpendicular distance from the centre to a chord. Students can use this Unit Wise Class Test 3 for board-pattern practice, revision, and preparation according to the Punjab Board 2027 paper pattern.

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Exercise No.8.2 & Review Exercise
T-3
Unit 8: Chords and Arcs of a Circle
Time: 5 minutes
(Objective Type)
Total Marks: 5
1. Tick the correct answer.
(1 × 5 = 5)
(i) Set of all the points in a plane that are at the same distance from a fixed point is called:
(a) Straight line
(b) Square
(c) Circle
(d) None of these
(ii) If C is the circumference of a circle then its diameter can be calculated by the formula d =
(a) C
(b) C/2
(c) C/π
(d) C/2π
(iii) Number of different circles can pass through three non-collinear points is:
(a) None
(b) Exactly one
(c) Exactly three
(d) Infinite many
(iv) Relation between radius r and diameter d of a circle is:
(a) d = r
(b) d = 2r
(c) r = 2d
(d) None of these
(v) The line shown in the figure is called:
A B
(a) Diameter
(b) Tangent line
(c) Secant line
(d) None of these
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Exercise 8.2 & Review Exercise
T-3
Unit 8: Chords and Arcs of a Circle
Time: 35 minutes
(Subjective Type)
Total Marks: 20
2. Write short answers to the following questions:
(6 × 2 = 12)
(i) Two congruent arcs in a circular track subtend angles of 60° each at the centre. If the length of one chord of the circle is 10 metres, what is the length of other chord?
(ii) In two congruent circular clocks, the minute hand points from the centre to the 3 on both. A decorative string connects 3 to 9 on both clocks. Are the arcs from 3 to 9 on both clocks congruent?
(iii) In a circular park, two walkways AB and CD are both straight paths (chords) of length 14 metres. What can be said about the minor arcs subtended by these walkways?
(iv) On a circular clock with radius of 6cm, the points from 2 to 10 form a chord that is 10cm, long. Find the perpendicular distance from the centre of clock to the chord.
(v) A chord 6cm long is at a distance of 4cm from the centre. Calculate the radius of the circle.
(vi) Jannat is designing a triangular garden with corners at points A(2, 1), B(4, 4) and C(1, 5). Can she install a circular fountain that touches all three corners?
Note: Answer the following Questions.
(4 + 4 = 8)
3. A steel bar 6m long lies inside a circular structure with ends on the circle. It is bisected by a perpendicular rod from the centre. Find the radius of the circular structure if the perpendicular distance from the centre to the bar is 4m.
4. A tree branch lies across a circular pond, forming a 20m chord. A measuring rod having length 10m is perpendicular to chord from the centre. What is the radius of the pond?

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