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Published on: 29/08/2019
Understanding Quadrilaterals
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Questions + Answers key
Take MCQ Mathematics Test
1.
Which of the following is true for the adjacent cangles of a parallelogram?
they are equal to each other
they are complementary angles
they are supplementary angles
none of these.
2.
In an isosceles parallelogram, we have:
pair of parallel sides equal
pair of non-parallel sides equal
pair of non-parallel sides as perpendicular
none of these.
3.
Which of the following parallelograms has all sides equal and diagonals bisect each other at 10. right angle?
square
rectangle
rhombus
trapezium.
4.
The number of diagonals in a polygon of n sides is
n(n-3)
\(\frac { n(n-3) }{ 2 } \)
n(n-2)
\(\frac { n(n-2) }{ 2 } \)
5.
Which of the following is not true for an exterior angle of a regular polygon with n sides?
Each exterior angle = \(\frac { { 360 }^{ 0 } }{ n } \)
Exterior angle = 180° - Interior angle
n = \(\frac { { 360 }^{ 0 } }{ Exterior\quad angle } \).
Each exterior angle = \(\frac { (n-2)\times 180^{ 0 } }{ n } \)
6.
Every square is a rhombus
7.
Every rhombus is a square
8.
Diagonals of rectangle intersects at right angle.
9.
All trapeziums are kites.
10.
All rectangles are parallelograms.
11.
All sides of a ________ are equal and all angles are right angles
12.
All angles of rectangle are equal and are ________ angles.
13.
The diagonals of a rhombus bisect each other at _________
14.
In a quadrilateral RISE, the pairs of opposite angles are _____
15.
If PQRS is a parallelogram, then ㄥQ - ㄥS is equal to _____
16.
The diagonals of a parallelogram are equal and bisect each other at right angles, It is a________
17.
A regular quadrilateral
18.
If AC = BD and ABCD is a parallelogram
19.
If AB II CD and BC II AD
20.
If AB II CD and AD=BC
21.
If AB = AD and BC = CD
22.
What do we call a trapezium having its nonparallel sides equal?
23.
Tetragon is the other name of which polygon increase length a quadrilateral or a triangle?
24.
If the sum of all the exterior angles of a quadrilateral is 360° then what is the sum of all the exterior angles of an octagon?
25.
For a regular polygon of sides, n(n -2) x 180° is the measure of the sum of its interior angles or exterior angles?
1.
(c)
they are supplementary angles
2.
(b)
pair of non-parallel sides equal
3.
(c)
rhombus
4.
(b)
\(\frac { n(n-3) }{ 2 } \)
5.
(d)
Each exterior angle = \(\frac { (n-2)\times 180^{ 0 } }{ n } \)
6.
(a)
7.
(b)
8.
(b)
9.
(b)
10.
(a)
11.
( )
square
12.
( )
right
13.
( )
right angles
14.
ㄥR, ㄥS and ㄥI, ㄥE; here, the pair of opposite angles are ㄥR, ㄥS and ㄥI, ㄥE.
15.
since, in a parallelogram PORS, opposite angles are equal.
Here, ㄥP, ㄥR and ㄥQ, ㄥS are opposite angles.
ㄥQ = ㄥS ⇒ ㄥQ - ㄥS = 0
16.
( )
Square
17.
( )
Square
18.
( )
Rectangle
19.
( )
Parallelogram
20.
( )
Isosceles trapezium
21.
( )
Kite
22.
( )
An isosceles trapezium
23.
( )
A quadrilateral
24.
( )
360o
25.
( )
Sum of interior angles
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CBSE 8th Standard CBSE Subjects
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