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Mikayla Watts
Mathematics
12 July, 23:26
Geometric properties involving angles iready
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Natalia Case
12 July, 23:28
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In Geometry, there are several angle properties that we use to prove propositions. We can mention the most used properties.
Angles on a straight angle.
When we have angles on a straight or flat angle, we can say that those angles are supplementary, because they sum 180°.
Vertical Angles.
Vertical angles are known by their congruence. These angles are opposite to the common vertex. In other words, the share a vertex but not sides, and they are always congruent.
Alternate angles.
An important property is when we have angles about parallels which are cut by a transversal. In this scenario, the altenate angles are congruent, whereas they are interior or exterior alternate angles.
Co-interior angles.
This pair of angles inside parallels are supplementary, which means their sum is always 180°.
Corresponding angles.
Once again, when we have parallels cut by a transversal, the corresponding angles are always congruent, they are corresponding when they are at the same side of the transversal, but one is interior parallels and the other is exterior parallels.
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