# Understanding Quadrilaterals – Chapter 3

**CBSE CLASS 8 MATHEMATICS**

**MCQ – Understanding Quadrilaterals – Chapter3**

**1. When you join a number of points without lifting a pencil from the paper, you get a ———–**

A. Plane curve

B. Simple curve

C. Closed curve

**2. A simple closed curve made up of only line segments is called a ————–**

A. Simple curve

B. Polygon

C. Diagonal

**3. A polygon with 9 sides or vertices is called a ————–**

A. Decagon

B. Nonagon

C. Heptagon

**4. A ———– a line segment connecting two non-consecutive vertices of a polygon.**

A. Diagonal

B. Chord

C. Edge

**5. The sum of the measures of the three angles of a triangle is ————**

A. 180

B. 270

C. 360

**6. The sum of the measures of the four angles of a quadrilateral is ——–**

A. 180

B. 270

C. 360

**7. The number of diagonals in a convex quadrilateral is ————–**

A. One

B. Two

C. Three

**8. The number of diagonals in a regular hexagon is ————-**

A. Eight

B. Nine

C. Ten

**9. The number of diagonals in a triangle is —————**

A. Zero

B. One

C. Two

**10. The sum of the measures of the external angles of any polygon is ————-**

A. 180

B. 270

C. 360

**11. The number of sides of a regular polygon whose each exterior angle has a measure of 45 degree is —————**

A. 6

B. 8

C. 10

**12. A quadrilateral with a pair of parallel sides is ———-**

A. Trapezium

B. Square

C. Rectangle

**13. A quadrilateral with two distinct consecutive pairs of sides of equal length is called ————–**

A. Trapezium

B. Kite

C. Parallelogram

**14. A quadrilateral whose opposite sides are parallel is —————**

A. Trapezium

B. Kite

C. Parallelogram

**15. The adjacent angles in a parallelogram are ————**

A. Complementary

B. Supplementary

C. Right angle

**16. The opposite sides of a parallelogram are of ——- length.**

A. equal

B. different

C. Greater

**17. All the quadrilaterals that have four sides of equal length is ————–**–

A. Rhombus, Square

B. Parallelogram, Kite

C. Rectangle, Trapezium

**18. All the quadrilaterals that have four right angles are —————**

A. Parallelogram, Kite

B. Square, Rectangle

C. Rhombus, Trapezium

**19. Name the quadrilaterals whose diagonals are perpendicular bisectors of each other.**

A. Rhombus, Square

B. Parallelogram, Kite

C. Trapezium, Rectangle

**20. Name the quadrilaterals whose diagonals are equal.**

A. Square, Rectangle

B. Trapezium, Kite

C. Parallelogram, Rhombus

**ANSWERS:**

1. Plane curve

2. Polygon

3. Nonagon

4. Diagonal

5. 180

6. 360

7. Two

8. Nine

9. Zero

10. 360

11. 8 sides

(Explanation: Total measure of all exterior angles = 360

Measure of each exterior angle = 45

Number of exterior angles = 360/45 = 8 sides)

12. Trapezium

13. Kite

14. Parallelogram

15. Supplementary

16. Equal

17. Rhombus, Square

18. Square, Rectangle

19. Rhombus, Square

20. Square, Rectangle.