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Understanding Quadrilaterals Cl 8

Total questions: 20

Worksheet time: 15mins

Name
Class
Date
1.

Identify the figure

a)

Hexagon

b)

Octagon

c)

Nonagon

d)

Decagon

2.

Identify the polygon

a)

Octagon

b)

Nonagon

c)

Decagon

d)

Heptagon

3.

Sum of the Measures of the Exterior Angles of a

Polygon

a)

180

b)

360

c)

90

d)

None

4.

A quadrilateral with each pair of opposite sides parallel.


Opposite angles are equal.


Opposite sides are equal.


Diagonals bisect one another.

a)
b)
c)
5.

Opposite angles are supplementary in parallelogram.

a)

True

b)

False

6.

Diagonals bisect each other at right angle in rectangle.

a)

True

b)

False

7.

Find the number of sides of a regular polygon whose each exterior angle has a measure of 60 °\degree  

a)

6

b)

8

c)

12

d)

5

8.

In the following polygons, which of the polygon is concave polygon?

a)
b)
c)
d)
9.

How many diagonals have a regular hexagon?

a)

9

b)

5

c)

7

d)

8

10.

In the following figure, given a parallelogram ABCD. Find x and y.

a)

x=6, y=27

b)

x=5, y=27

c)

x=6, y=9

d)

x=16, y=27

11.

Two adjacent angles of a Parallelogram are in the ratio of

2 : 3. Find all the 4 angles of the Parallelogram.

a)

72,108

b)

80,100

c)

40, 140

d)

60, 120

12.

Which of the following statements is false for a square?

a)

It is a rectangle

b)

It has all sides of equal length

c)

All squares are not parallelograms

d)

Eid darkness bisect each other at right angles.

13.

Find the measure of 'x' in the given figure

a)

140

b)

240

c)

150

d)

None of these

14.

In the given figure ABCD is a trapezium in which AB parallel to DC. Find the measure of <C

a)

120 degrees

b)

60 degrees

c)

100 degrees

d)

80 degrees

15.
Find the value of X.
a)
100
b)
120
c)
125
d)
130
16.

If a convex polygon has n sides, the no. of diagonals is given by ?

a)

n(n+3)2\frac{n\left(n+3\right)}{2} 

b)

n(n3)2\frac{n\left(n-3\right)}{2}

c)

n+(n3)2\frac{n+\left(n-3\right)}{2}

d)

n+(n+3)2\frac{n+\left(n+3\right)}{2}

17.

What is the formula for finding angle sum of a polygon if n is the number of sides ?

a)

(n-1)x180

b)

(n+1)x180

c)

(n-2)x180

d)

(n+2)x180

18.

If a quadrilateral ABCD is such that AB=AD, BC=CD then it is called a ?

a)

parallelogram

b)

square

c)

rectangle

d)

kite

19.
A polygon in which all the angles are less than 180⁰ is called_____
a)
Convex Polygon
b)
Concave Polygon
20.
The measure of each exterior angle of a regular polygon of 36 sides is _____
a)
10⁰
b)
100⁰
c)
90⁰
d)
36⁰