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Practical Geometry — Class 8 CBSE Mathematics MCQs with Solutions
Free Class 8 CBSE Mathematics Practical Geometry MCQs with step-by-step solutions. Practise online on Prepizo — no login needed.
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Sample questions with solutions
Q1 — easy
The instrument used to draw a circle is a:
A. ruler
B. compass ✓ Correct
C. protractor
D. divider
Solution: A compass draws circles and arcs.
Q2 — easy
A protractor is used to measure:
A. length
B. angles ✓ Correct
C. area
D. weight
Solution: A protractor measures angles.
Q3 — easy
The sum of angles in a triangle used during construction is:
A. 90°
B. 180° ✓ Correct
C. 270°
D. 360°
Solution: Every triangle totals 180°.
Q4 — easy
To bisect a line segment we construct:
A. a parallel line
B. a perpendicular bisector ✓ Correct
C. an angle bisector
D. a tangent
Solution: A perpendicular bisector cuts it into two equal halves.
Q5 — hard
Constructing a 75° angle uses which combination?
A. 60° + 15°
B. 90° − 15°
C. both of these work ✓ Correct
D. neither works
Solution: 75° can be reached from 60°+15° or 90°−15°.
Q6 — hard
To construct a triangle you need at least how many measurements?
A. 1
B. 2
C. 3 ✓ Correct
D. 4
Solution: Three suitable measurements fix a triangle.
Q7 — hard
In constructing a parallelogram, knowing two adjacent sides and the included angle is:
A. insufficient
B. sufficient ✓ Correct
C. only sufficient for a square
D. only sufficient for a rhombus
Solution: That data determines the parallelogram.
Q8 — hard
The perpendicular bisector of a chord of a circle always passes through:
A. any point
B. the centre ✓ Correct
C. the tangent point
D. the circumference
Solution: It always passes through the centre.
Q9 — medium
To construct a rhombus, it is enough to know:
A. one side only
B. both diagonals ✓ Correct
C. one angle only
D. the perimeter only
Solution: The two diagonals determine a rhombus.
Q10 — medium
A rectangle can be constructed if we know:
A. one side
B. both adjacent sides ✓ Correct
C. one diagonal only
D. one angle
Solution: Length and breadth fix a rectangle.
Q11 — medium
Which construction needs an angle bisector?
A. drawing a 60° angle
B. drawing a 30° angle from 60° ✓ Correct
C. drawing a line
D. measuring a side
Solution: Bisecting 60° gives 30°.
Q12 — medium
A square is fully determined by:
A. its side ✓ Correct
B. its angles
C. its colour
D. two angles
Solution: All sides equal and all angles 90°, so one side is enough.