1. If two angles are supplementary angles, then their sum is equal to?
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Correct answer is option - 2
Explanation: Two angles are said to be supplementary angles if their sum is equal to be 180°.
2. Two angles of measure ‘a’ and ‘b’ respectively are supplementary angles on a straight line. If a = 40°, then how much is ‘b’?
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Correct answer is option - 4
Explanation:
Given, ‘a’ and ‘b’ are supplementary angles on a straight line.
So, a + b = 180° which implies 40° + b = 180°.
This gives: b = 180° - 40° = 140°.
3. Two angles are supplementary and one of them is 56°. What is the other angle?
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Correct answer is option - 1
Explanation:
If two angles are supplementary angles, then their sum is equal to be 180°.
This implies that the other angle = 180° - 56° = 124°.
4. Two angles are supplementary and one of them is 115°. What is the other angle?
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Correct answer is option - 2
Explanation:
If two angles are supplementary angles, then their sum is equal to be 180°.
This implies that the other angle = 180° - 115° = 65°.
5. Given two angles are supplementary and one of the angle is twice larger than the other angle. The measure of the smaller angle is:
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Correct answer is option - 2
Explanation:Let the smaller angle be = x°. Then the larger angle = 2x°
Since they both are supplementary angles, x° + 2x° = 180° -> 3x° = 180°.
This implies, x = 180°/3 = 60°.
Hence the smaller angle, x° = 60°.
6. Given one angle is 2x°and the other angle is 3x°. If both the angles are supplementary, then what is the value of x?
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Correct answer is option - 1
Explanation:Since they both are supplementary angles, 2x° + 3x° = 180° ==> 5x° = 180°.
This implies, x = 180°/5 = 36°.
Hence the value of x is 36.