If Two Lines Intersect, Then Two Pairs Of Vertical Angles
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If two lines intersect, then two pairs of vertical angles are formed.
If a triangle is equilateral then it is regular.
If two coplanar lines are not parallel, then they form congruent vertical angles.
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Conditional statement:
If two lines intersect, then two pairs of vertical angles are formed. Converse:
If two pairs of vertical angles are formed, then two lines intersect. Inverse:
If two lines do not intersect, then two pairs of vertical angles are not formed. Contrapositive
If two pairs of vertical angles are not formed, then two lines do not intersect.
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(5x+20)o (3y+9)o
3xo (8y16)o
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6
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If a triangle is equilateral then it is regular.
If two coplanar lines are not parallel, then they form congruent vertical angles.
1
Conditional statement:
If two lines intersect, then two pairs of vertical angles are formed. Converse:
If two pairs of vertical angles are formed, then two lines intersect. Inverse:
If two lines do not intersect, then two pairs of vertical angles are not formed. Contrapositive
If two pairs of vertical angles are not formed, then two lines do not intersect.
2
3
4
(5x+20)o (3y+9)o
3xo (8y16)o
5
6
7
8
