Question

GIVEN: 41 42

PROVE: 23 and 24 are supplements.
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3/Q
1
T
2 4
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S
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ORANG

Answer 1

Steps of reasoning:

• Angles 2 and 4 are supplementary as linear pair.
• Angles 1 and 2 are congruent (given), then angles 1 and 4 are supplementary.
• Angles 1 and 3 are congruent as vertical angles as per definition of vertical angles.
• Then angles 3 and 4 are supplementary, hence proved.