CBSE Questions for Class 9 Maths Lines And Angles Quiz 7 - MCQExams.com

Which of the following are complementary angles?
  • $$71^o$$ and $$19^o$$
  • $$18^o$$ and $$180$$
  • $$90^o$$ and $$90^o$$
  • $$90^o$$ and $$45^o$$
  • $$15^o$$ and $$30^o$$
What is the measure of angle B in the following figure if angle A measures $$135^o$$?
537573_e782035a81d94cee9168caa9d95459e4.png
  • $$40^o$$
  • $$45^o$$
  • $$50^o$$
  • $$135^o$$
In quadrilateral $$PQRS$$ above, for what value of $$x$$, $$PS\parallel QR$$?
484080_d154bdee4404401ba5387d88a36af5c6.png
  • $$158$$
  • $$132$$
  • $$120$$
  • $$110$$
  • $$70$$
In the figure, if $$\angle q=140$$, what is the value of $$\angle r- \angle p$$?
478579_b7bc6c41fcf64d87a3f4f3fddf6ef24f.png
  • $$0^o$$
  • $$10^o$$
  • $$90^o$$
  • $$130^o$$
Find the complement of each of the following angles $$24^{\circ}$$.
  • $$66^{\circ}$$
  • $$156^{\circ}$$
  • $$36^{\circ}$$
  • None of these
In the adjacent figure PQ || ST, $$\angle PQR = 110^o$$ and $$\angle RST = 130^o$$, find $$\angle QRS$$.
570708_480c1812f24b40d69ca8a8fcae945593.png
  • $$30^o$$
  • $$130^o$$
  • $$60^o$$
  • $$160^o$$
Find the supplement  of the following angle.
$$40^{\circ}$$
  • $$140$$
  • $$40$$
  • $$10$$
  • None of these
Write 'True' or 'False'. 
A straight angle measures $$90^o$$
  • True
  • False
Find the complement of each of the following angles $$20^{\circ}$$.
  • $$70^{\circ}$$
  • $$60^{\circ}$$
  • $$110^{\circ}$$
  • None of these
Find the complement of each of the following angles $$48^{\circ}$$.
  • $$42^{\circ}$$
  • $$52^{\circ}$$
  • $$132^{\circ}$$
  • None of these
Two angles are equal and supplementary to each other. find them.
  • $$ 90^0 , \, 90^0$$
  • $$ 30^0 , \, 150^0$$
  • $$ 45^0 , \, 45^0$$
  • None of these
Find the complement of each of the following angles $$35^{\circ}$$.
  • $$55^{\circ}$$
  • $$145^{\circ}$$
  • $$35^{\circ}$$
  • None of these
As shown in the given figure, according to corresponding angle theorem, which two angles are equal?
704385_5f40c5cc73f048b7b29caa28bfd21836.png
  • $$\angle 1$$ and $$\angle2$$
  • $$\angle 1$$ and $$\angle3$$
  • $$\angle 1$$ and $$\angle4$$
  • $$\angle 1$$ and $$\angle5$$
As shown in above figure which of the following angles are equal
704338_2ff6a4af8f1e49db8147a66b8481c6b3.PNG
  • $$\angle1$$ and $$\angle2$$
  • $$\angle1$$ and $$\angle3$$
  • $$\angle1$$ and $$\angle4$$
  • None of the above
What is the value of $$a-b$$
708437_d8ca30e3b2dd44179c7ea3004c523b39.PNG
  • $$180^0$$
  • $$60^0$$
  • $$70^0$$
  • $$120^0$$
What is the measure of supplementary angle of $$108^{\circ}$$?
  • $$76^{\circ}$$
  • $$62^{\circ}$$
  • $$72^{\circ}$$
  • $$82^{\circ}$$
What is the measure of complementary angle of $$12^{\circ}$$?
  • $$68^{\circ}$$
  • $$78^{\circ}$$
  • $$88^{\circ}$$
  • $$72^{\circ}$$
In the given figure, AB$$||$$CD and BC$$||$$DE, then the value of x is _____________.
725635_8f8ac774b5074220b1d0e8a22ff680f8.png
  • $$95^o$$
  • $$90^o$$
  • $$85^o$$
  • $$80^o$$
The measure of complementary angle of $$64^{\circ}$$ is $$26^{\circ}$$.
  • True
  • False
If $$l ||m$$ and CD is transversal, $$\angle 1$$ and $$\angle 2$$ represents _____
784091_4a1ba86938024517855e8f6403dd6085.JPG
  • Co-interior angles
  • Corresponding angles
  • Alternate interior angles
  • Exterior angles
How many angles are less than $$90^o$$ inside the given figures?
722812_49810db3826e4af6bc60879b758fbcb6.png
  • $$2$$
  • $$3$$
  • $$4$$
  • $$5$$
If measure of one angle of linear pair is $$102^{\circ}$$, then the measure of second angle is $$ 78^{\circ}$$.
  • True
  • False
In the given figure, $$\angle QPB$$ is
923857_64e542d7f22e4239aaf6c80bd592a22a.png
  • $${ 60 }^{ o }$$
  • $${ 45 }^{ o }$$
  • $${ 30 }^{ o }$$
  • $${ 15 }^{ o }$$
Lines $$PQ$$ and $$RS$$ intersect at $$O$$. If $$\angle POS=2\angle SOQ$$ then the four angles at $$O$$ are
  • $${ 30 }^{ o },{ 30 }^{ o },{ 120 }^{ o },{ 180 }^{ o }$$
  • $${ 60 }^{ o },{ 60 }^{ o },{ 120 }^{ o },{ 120 }^{ o }$$
  • $${ 60 }^{ o },{ 90 }^{ o },{ 90 }^{ o },{ 120 }^{ o }$$
  • $${ 30 }^{ o },{ 60 }^{ o },{ 90 }^{ o },{ 180 }^{ o }$$
The angle between two opposite rays is ________.
  • Right
  • Obtuse
  • Acute
  • Straight
Which of the following is an obtuse angle?
  • $$92^{\circ}$$
  • $$181^{\circ}$$
  • $$195^{\circ}$$
  • $$83^{\circ}$$
A transversal intersects two or more than two lines at _________ points.
  • Same
  • Different
  • Equidistant
  • None of these
Find the value of x, y and z in the adjoining figure.
1068116_7898887b3c4643d38c9b8c7b115e3f85.png
  • $$x=160$$, $$y=60$$, $$z=80$$
  • $$x=60$$, $$y=80$$, $$z=40$$
  • $$x=80$$, $$y=60$$, $$z=140$$
  • $$x=140$$, $$y=80$$, $$z=60$$
In $$\triangle ABC,\angle A={ x }^{ \circ },\angle B={ \left( 2x-15 \right)  }^{ \circ}$$ and $$\angle C ={ \left( 3x+21 \right)  }^{ \circ }$$. Find the value of $$x$$ and the measure of each angle of the triangle.
  • $$x={ 27 }^{ \circ },\angle A={ 27 }^{ \circ },\angle B={ 41 }^{ \circ },\angle C={ 101 }^{ \circ }$$
  • $$x={ 29 }^{ \circ },\angle A={ 29 }^{ \circ },\angle B={ 43 }^{ \circ },\angle C={ 108 }^{ \circ }$$
  • $$x={ 27 }^{ \circ },\angle A={ 27 }^{ \circ },\angle B={ 41 }^{ \circ },\angle C={ 108 }^{ \circ }$$
  • $$x={ 30 }^{ \circ },\angle A={ 30 }^{ \circ },\angle B={ 41 }^{ \circ },\angle C={ 109 }^{ \circ }$$
From the figure, find values of $$x$$ and $$y$$. 
1129339_b77b676016244fcf8ff9206bf8423ea7.png
  • $$25^{o},30^{o}$$
  • $$35^{o},31^{o}$$
  • $$50^{o},28^{o}$$
  • $$45^{o},33^{o}$$
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