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Two supplementary angles are in the rati...

Two supplementary angles are in the ratio 2:3. The angles are

A

A)`33^@, 57^@`

B

B)`68^@, 114^@`

C

C)`72^@, 108^@`

D

D)`36^@, 54^@`

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The correct Answer is:
To solve the problem of finding two supplementary angles that are in the ratio of 2:3, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Supplementary Angles**: Supplementary angles are two angles whose sum is 180 degrees. 2. **Setting Up the Ratio**: Let the two angles be represented as \(2k\) and \(3k\), where \(k\) is a common multiplier. This representation maintains the ratio of 2:3. 3. **Writing the Equation**: Since the angles are supplementary, we can write the equation: \[ 2k + 3k = 180 \] 4. **Combining Like Terms**: Combine the terms on the left side of the equation: \[ 5k = 180 \] 5. **Solving for \(k\)**: Divide both sides by 5 to find the value of \(k\): \[ k = \frac{180}{5} = 36 \] 6. **Finding the Angles**: Now, substitute \(k\) back into the expressions for the angles: - First angle: \[ 2k = 2 \times 36 = 72 \text{ degrees} \] - Second angle: \[ 3k = 3 \times 36 = 108 \text{ degrees} \] 7. **Conclusion**: The two supplementary angles are \(72\) degrees and \(108\) degrees. ### Final Answer: The angles are \(72\) degrees and \(108\) degrees. ---
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KIRAN PUBLICATION-GEOMETRY-QUESTIONS ASKED IN PREVIOUS SSC EXAMS (TYPE- XIV)
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  12. P, Q and R are the points so that PR = 3 cm, QR = 5 cm and PQ = 8 cm. ...

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  13. An angle is 1/3 rd of its supplementary angle. Find the measure of the...

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  14. An angle is greater than its complementary angle by 30^@. Find the mea...

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  15. In the given figure, O is the centre of the circle, OQ is perpendicula...

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  16. Circum-centre of DeltaPQR is O. If /QPR = 55^@ and /QRP = 75^@, what i...

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