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## MCQ Questions for Class 8 Mathematics with Answers

## Q1. Polygons that have no portions of their diagonals in their exteriors are called

(i) triangles

(ii) convex

(iii) concave

(iv) squares

(ii) convex

## Q2. How many measurements can determine a quadrilateral uniquely?

(i) 2

(ii) 3

(iii) 4

(iv) 5

(iv) 5

## Q3. To construct a parallelogram we need to know:

(i) Length of its parallel sides

(ii) Measure of interior angles

(iii) Two adjacent sides and one angle

(iv) Two adjacent sides and two angles

(iii) Two adjacent sides and one angle

## Q4. Which of the following is a regular quadrilateral?

(i) Rectangle

(ii) Square

(iii) Rhombus

(iv) Trapezium

(ii) Square

## Q5. A polygon with minimum number of sides is

(i) Pentagon

(ii) Square

(iii) triangle

(iv) angle

(iii) triangle

## Q6. A parallelogram must be a rectangle if its diagonals

(i) bisect the angles to which they are drawn

(ii) are perpendicular to each other

(iii) bisect each other

(iv) are congruent

(iv) are congruent

## Q7. The opposite angles of a parallelogram are **__**

(i) Unequal

(ii) equal

(iii) complementary

(iv) supplementary

(ii) equal

## Q8. To construct a rectangle, we need to know:

(i) All the interior angles

(ii) All the Sides

(iii) Only Length and breadth

(iv) Only one angle measure

(iii) Only Length and breadth

## Q9. What will be the side of a rhombus whose diagonals are 16 cm and 12 cm long?

(i) 15 cm

(ii) 18 cm

(iii) 20 cm

(iv) 10 cm

(iv) 10 cm

## Q10. What do we require to construct a square?

(i) Length of one side

(ii) Lengths of three sides

(iii) Lengths of two sides

(iv) None of these

(i) Length of one side

## Q11. A simple closed curve made up of only *_* is called a polygon .

*_*(i) lines

(ii) curves

(iii) closed curves

(iv) line segments

(iv) line segments

## Q12. How many diagonals does a regular Hexagon has ?

(i) 2

(ii) 9

(iii) 3

(iv) 5

(ii) 9

## Q13. If two diagonals are given, then we can construct a:

(i) Rhombus

(ii) Rectangle

(iii) Kite

(iv) Parallelogram

(i) Rhombus

### Q14. In a quadrilateral ABCD, the angles A, B, C and D are in the ratio 1 : 2 : 3 : 4. The measure of smallest angle is:

(i) 36°

(ii) 54°

(iii) 72°

(iv) 18°

(i) 36°

## Q15. To construct a quadrilateral uniquely, it is necessary to know at least_________ of its parts.

(i) 5

(ii) 4

(iii) 3

(iv) 2

(i) 5

## Q16. All the angles of a regular polygon are of **__**

(i) 90°

(ii) 60°

(iii) equal length

(iv) equal measure

(iv) equal measure

## Q17. Minimum possible interior angle in a regular polygon is *_*

*_*

(i) 70°

(ii) 60°

(iii) 90°

(iv) 120°

(ii) 60°

## Q18. If two diagonals and three sides are given, then:

(i) A quadrilateral cannot be constructed

(ii) A quadrilateral can be constructed

(iii) Insufficient information

(iv) Any polygon can be constructed

(ii) A quadrilateral can be constructed

## Q19. A quadrilateral can be constructed uniquely if the lengths of its **__** sides and a diagonal are given.

(i) 3

(ii) 1

(iii) 2

(iv) 4

(iv) 4

## Q20. The quadrilateral whose diagonals are equal and bisect each other at right angle is *__*.

*__*

(i) Triangle

(ii) Square

(iii) Rhombus

(iv) None of these

(ii) Square

## Q21. the diagonals of a rhombus bisect each other at *__* angles.

*__*(i) acute

(ii) right

(iii) obtuse

(iv) reflex

(ii) right

## Q22. To construct a quadrilateral, we need to know two diagonals and **_** sides.

(i) One

(ii) Two

(iii) Three

(iv) All four sides

(iii) Three

## Q23. A parallelogram must be a rectangle if its diagonals

(i) bisect the angles to which they are drawn

(ii) are perpendicular to each other

(iii) bisect each other

(iv) are congruent

(iv) are congruent

## Q24. A quadrilateral can be constructed uniquely if its **_** sides and two included angles are given.

(i) 1

(ii) 2

(iii) 3

(iv) none of these

(iii) 3

## Q25. The angle sum of all interior angles of a convex polygon of sides 7 is

(i) 180°

(ii) 540°

(iii) 630°

(iv) 900°

(iv) 900°

## Q26. A simple closed curve made up of only *__* is called a polygon .

*__*(i)curves

(ii) line segments

(iii) lines

(iv) closed curves

(ii) line segments

## Q27. Polygons that have no portions of their diagonals in their exteriors are called

(i) triangles

(ii) convex

(iii) concave

(iv) squares

(ii) convex

## Q28. What do we require to construct a quadrilateral if measures of two adjacent angles are given?

(i) Lengths of three sides

(ii) Length of one side

(iii) Lengths of two sides

(iv) None of these

(i) Lengths of three sides

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