CBSE Questions for Class 9 Maths Lines And Angles Quiz 1 - MCQExams.com

At $$4:15$$, the angle formed between the two hands of a clock is:
  • acute
  • obtuse
  • right angle
  • none of these
$$\angle ABC$$ in the following figure is a / an:

98439_d68a1d8da09749af8705d37e08563f01.jpg
  • acute angle
  • obtuse angle
  • reflex angle
  • straight angle
Two supplementary angles are in the ratio 4 :The angles are
  • $$90^{\circ}, 90^{\circ}$$
  • $$80^{\circ}, 100^{\circ}$$
  • $$30^{\circ}, 150^{\circ}$$
  • $$45^{\circ}, 45^{\circ}$$
The complement of $$(90^o-a)$$ is :
  • $$-a$$
  • $$90^o+a$$
  • $$90^o-a$$
  • $$a$$
In Fig, POQ is a line. The value of x is:

78596_93947d6c9f024359a58f55c767da207e.png
  • $$20^0$$
  • $$25^0$$
  • $$30^0$$
  • $$35^0$$
Find the complement of the angle :
$$\dfrac{1}{4}$$ of a right angle.
  • $$67 \cdot 5^o$$
  • $$57 \cdot 5^o$$
  • $$37 \cdot 5^o$$
  • none of the above
State true or false:
The complement of the angle $$(150-a+b)^o$$ is $$(a - b - 60)^o$$.
  • True
  • False
Find the angle which is $$20^o$$ more than its supplement.
  • $$90$$
  • $$95$$
  • $$100$$
  • $$105$$
State if the following statement is true or false:
An exterior angle of a triangle is equal to the sum of the two interior opposite angles.
  • True
  • False
  • Aambiguous
  • Data Insufficient
If two angles are complementary of each other, then each angle is:
  • an obtuse angle
  • a right angle
  • an acute angle
  • a supplementary angle
Find the angle which is $$30^o$$ more than its complement.
  • $$50$$
  • $$55$$
  • $$60$$
  • $$65$$
Two adjacent angles whose sum is $$\displaystyle 180^{0}$$ is called
  • complementary angles
  • linear pair
  • vertically opposite angles
  • none
Two circles APQC and PBDQ intersect each other at the points P and Q and APB and CQD are two parallel straight lines. Then only one of the following statements is always true. Which one is it?
  • ABDC is a cyclic quadrilateral.
  • Ac is parallel to BD.
  • ABDC is a rectangle.
  • $$\angle ACQ$$ is a right angle.
If the difference of two complementary angle in $${ 10 }^{ 0 }$$, then the smaller angle is
  • $${ 40 }^{ 0 }$$
  • $${ 50 }^{ 0 }$$
  • $${ 45 }^{ 0 }$$
  • $${ 85 }^{ 0 }$$
If an angle $$x^\circ $$ is equal to supplement, then the angle is 
  • $$\frac{1}{3}$$ right angle
  • $$\frac{1}{4}$$ straight angle
  • $$\frac{1}{4}$$ Complete angle
  • $$\frac{2}{5}$$ Right angle
Two complemntary angles are in the ratio 2:The measure of the larger angle is 
  • $$60$$
  • $$54$$
  • $$66$$
  • $$48$$
Mark the correct alternative of the following.
In figure, if AB$$||$$CD, then $$x=?$$
1677658_a024b2054a9e4daa81e9b66b7d9ad032.png
  • $$62$$
  • $$42$$
  • $$52$$
  • $$31$$
If the angles made by a line with the positive directions of X and Y-axes are complementary angles then the angle made by the line with Z-axis is
  • 0
  • $$\frac {\pi }{3}$$
  • $$\frac {\pi }{4}$$
  • $$\frac {\pi }{2}$$
Mark the correct alternative of the following.
In figure, if AB$$||$$CD then the value of x is?
1677651_e86af903d63d4019bb569425c67aaf9a.png
  • $$87$$
  • $$93$$
  • $$147$$
  • $$141$$
In fig. , the value of x is
1471461_4a420eccba7b4cf3a5be037fd285d31e.PNG
  • 75
  • 65
  • 45
  • 55
The value of the variable (in the given figure) is equal to:
1880095_2a7ac80d7f884fe9b33c1ac36b87416e.PNG
  • 6.5
  • 7
  • 5.5
  • 9
In the given figure, if $$ \angle COA = 62^{\circ} $$, then $$ x $$ is :
1880094_cfaf168487fb419e97fdcd67ff4775fa.png
  • $$ 108^{\circ} $$
  • $$ 128^{\circ} $$
  • $$ 118^{\circ} $$
  • $$ 32^{\circ} $$
State true or false:
The supplement of the angle $$(120 + a -2b)^o$$ is $$(60-a+2b)^o$$
  • True
  • False
If the sides of a triangle are produced, then the sum of the exterior angle i.e. $$\angle a+\angle b+\angle c$$ is equal to:
241643.png
  • $${ 180 }^{ 0 }$$
  • $${ 360 }^{ 0 }$$
  • $$90^{ 0 }$$
  • $$270^{ 0 }$$
Find the angle which is equal to its supplement
  • $$80$$
  • $$90$$
  • $$110$$
  • $$154$$
State true or false:
Two distinct intersecting lines cannot be parallel to the same line.
  • True
  • False
Find the measure of the supplementary angle of $$54^o$$
  • $$26^o$$
  • $$126^o$$
  • $$34^o$$
  • $$134^o$$
Find the measure of the complementary angle of $$77^o$$.
  • $$43^o$$
  • $$70^o$$
  • $$47^o$$
  • $$13^o$$
Find the measure of the supplementary angle of $$138^\circ$$.
  • $$48^\circ$$
  • $$42^\circ$$
  • $$52^\circ$$
  • $$38^\circ$$
If one angle of a linear pair is acute, then its other angle will be ______.
  • Obtuse angle
  • Acute angle
  • Right angle
  • None of these
0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Class 9 Maths Quiz Questions and Answers