NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 5: Lines And AnglesFill in the Blanks
Class 7 - Mathematics - Unit 5: Lines And Angles
Question. 42
If sum of measures of two angles is 90°, then the angles are ______.
Answer:
If sum of measures of two angles is 90°, then the angles are complementary.
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Question. 43
If the sum of measures of two angles is 180°, then they are ______.
Answer:
If the sum of measures of two angles is 180°, then they are supplementary.
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Question. 44
A transversal intersects two or more than two lines at ______ points.
Answer:
A transversal intersects two or more than two lines at distinct points.
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Question. 45
Sum of interior angles on the same side of a transversal is ______.
Answer:
Sum of interior angles on the same side of a transversal is 180°.
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Question. 46
Alternate interior angles have one common ______.
Answer:
Alternate interior angles have one common arm.
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Question. 47
Corresponding angles are on the ______ side of the transversal.
Answer:
Corresponding angles are on the same side of the transversal.
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Question. 48
Alternate interior angles are on the ______ side of the transversal.
Answer:
Alternate interior angles are on the opposite side of the transversal.
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Question. 49
Two lines in a plane which do not meet at a point anywhere are called ______ lines.
Answer:
Two lines in a plane which do not meet at a point anywhere are called parallel lines.
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Question. 50
Two angles forming a ______ pair are supplementary.
Answer:
Two angles forming a linear pair are supplementary.
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Question. 51
The supplement of an acute is always ______ angle.
Answer:
The supplement of an acute is always obtuse angle.
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Question. 52
The supplement of a right angle is always ______ angle.
Answer:
The supplement of a right angle is always right angle.
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Question. 53
The supplement of an obtuse angle is always ______ angle.
Answer:
The supplement of an obtuse angle is always acute angle.
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Question. 54
In a pair of complementary angles, each angle cannot be more than ______.
Answer:
In a pair of complementary angles, each angle cannot be more than 90°.
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Question. 55
An angle is 45°. Its complementary angle will be ______.
Answer:
An angle is 45°. Its complementary angle will be 45°.
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Question. 56
An angle which is half of its supplement is of ______.
Answer:
An angle which is half of its supplement is of 60°.