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CBSE Questions for Class 9 Maths Lines And Angles Quiz 5 - MCQExams.com

If angle P and angle Q are supplementary and the measure of angle P is 60o, then the measure of angle Q is: 
  • 120o
  • 60o
  • 30o
  • 20o
Two acute angles are congruent.
  • True
  • False
Sum of any two angles of a triangle is always greater than the third angle.
  • True
  • False
If the sum of two angles is equal to an obtuse angle, then which of the following is not possible?
  • One obtuse angle and one acute angle
  • One right angle and one acute angle
  • Two acute angles
  • Two right angles
In the figure, if OP||RS, \angle OPQ=110^0 and \angle QRS =130^0, then \angle PQR  is equal to


78601_7c568b4509364f6f82e1c4efdd9757bb.png
  • 40^0
  • 50^0
  • 60^0
  • 70^0
If m\angle XYZ = 86^o and m\angle XZY = 23^o. What is m\angle YXZ in the triangle?
  • 70^o
  • 71^o
  • 72^o
  • 73^o
Find x + y + z

84008.jpg
  • x+y+z = 180^{0}
  • x+y+z = 360^{0}
  • x+y+z = 480^{0}
  • x+y+z = 540^{0}
In the given figure, \angle QPB  is,

98642_6e0076eb2dcd41ae8809da7948dac9b4.png
  • 60^{\circ}
  • 45^{\circ}
  • 30^{\circ}
  • 15^{\circ}
If two supplementary angles are in the ratio 2 : 7, then the angles are :
  • 35^{\circ}, 145^{\circ}
  • 70^{\circ}, 110^{\circ}
  • 40^{\circ}, 140^{\circ}
  • 50^{\circ}, 130^{\circ}
In the figure, if \angle A + \angle B + \angle C + \angle D + \angle E + \angle F = k\times  right angle, then k is :
84171_2dc17cfe585a451fb0720a5ab1cf0521.png
  • 2
  • 3
  • 4
  • 5
Two angles are called adjacent if
  • they have a common vertex
  • they have a ray in common
    •  their other arms lie on the opposite sides of the common arm
  • all the above
If one of the angles of a triangle is 130^0, then the angle between the bisectors of the other two angles can be
  • 50^0
  • 65^0
  • 145^0
  • 155^0
If the sum of two adjacent angles is 100^{\circ} and one of them is 35^{\circ}, then the other is :
  • 70^{\circ}
  • 65^{\circ}
  • 135^{\circ}
  • 145^{\circ}
The angle which exceeds its complement by 20^{\circ} is:
  • 45^{\circ}
  • 55^{\circ}
  • 70^{\circ}
  • 110^{\circ}
From the adjoining figure, calculate the values of a.
177296.jpg
  • 46^o
  • 38^o
  • 56^o
  • none of the above
In the given figure, AB // CD, EH // BC, \angle BAC = 60^{\circ} and \ \angle DGH = 40^{\circ}. Find the measures of  \angle AEF .
177346_8f60b5c0b2e247e49eab22e10b326e0d.png
  • 36^o
  • 40^o
  • 46^o
  • none of the above
In the given figure, ABC is a triangle, side CB is produced to E and \angle A: \angle B: \angle C = 2: 1: 3. Find \angle DBE, if DB is perpendicular to AB.
177294.jpg
  • 66^o
  • 46^o
  • 60^o
  • none of the above
From the given figure, we can find that \angle ABC =47^o.

176726_416dd47f251d43c1b385dfeff3b84b80.png
  • True
  • False
The angles of a triangle are in the ratio 2: 1:Is the triangle right-angled triangle?
  • True
  • False
Two lines that are respectively parallel to two intersecting lines, intersect each other.
  • True
  • False
  • Ambiguous
  • Data Insufficient
Angles forming a linear pair can both be acute angles.
  • True
  • False
  • Ambiguous
  • Data Insufficient
Find the angle which is 80^o more than its complement.
  • 75
  • 85
  • 95
  • 100
In the given figure, AB // CD, EH // BC, \angle BAC = 60^{\circ} and \ \angle DGH = 40^{\circ}. Find the measures of  \angle AFG.
177351_376437f7509f4408a0d9ed630a91fc4b.png
  • 96^o
  • 86^o
  • 100^o
  • none of the above
If two adjacent angles are equal, then each angle measures 90^o.
  • True
  • False
  • Ambiguous
  • Data Insufficient
In the figure, given AE // BD and AC // ED: find \angle b.
177367.jpg
  • 65^o
  • 36^o
  • 45^o
  • none of the above
Find the angle which is 60^o more than its complement.
  • 55
  • 75
  • 85
  • 60
In the given figure, AB || CD, EH || BC, \angle BAC = 60^{\circ} and \ \angle DGH = 40^{\circ}. Find the measures of  \angle CFG.
177349_d169f44aeff545218a9b1bdd98d9a213.png
  • 60^o
  • 80^o
  • 56^o
  • none of the above
Two supplementary angles differ by 48^o. Then find these angles.
  • 36^o, 84^o
  • 46^o, 94^o
  • 56^o, 104^o
  • 66^o, 114^o
The angle formed by the pages of an open book is:
  • Acute
  • Obtuse
  • Right
  • Straight
How many pairs of adjacent angles, in all, can you name in figure?

243439_6dde910236544187be24f3510341c479.png
  • 8
  • 7
  • 12
  • 10
0:0:1


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