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NCERT Exemplar · Class 7 · Maths

Chapter 5: Lines and Angles

Practice each question, then open the answer or worked solution.

Questions

56 questions
Q51Written answer

The supplement of an acute is always __________ angle.

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Worked solution

Solution:-

The supplement of an acute is always an obtuse angle.

Q52Written answer

The supplement of a right angle is always _________ angle.

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Worked solution

Solution:-

The supplement of a right angle is always right angle.

Q53Written answer

The supplement of an obtuse angle is always _________ angle.

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Worked solution

Solution:-

The supplement of an obtuse angle is always an acute angle.

Q54Written answer

In a pair of complementary angles, each angle cannot be more than _________.

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Worked solution

Solution:-

In a pair of complementary angles, each angle cannot be more than 90o.

Q55Written answer

An angle is 45o. Its complementary angle will be __________ .

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Worked solution

Solution:-

An angle is 45o. Its complementary angle will be 45o.

Q56Written answer

An angle which is half of its supplement is of __________.

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Worked solution

Solution:-

An angle which is half of its supplement is 60o.

Let us assume the angle is p, and the supplement is 2p

p + 2p = 1800

3p = 1800

p = 600