Mathematics, 10.12.2020 17:00 sunny1211

Wong constructs the following arqurnent: Angle a is [missing reason 1] and therefore congruent to one angle in the triangle formed by lines m, x, and y.
Angles b and care [missing reason 2] and therefore congruent to two other angles in the triangle.
The sum of the three angles in a triangle is 180 degrees. Therefore m Za tm Zb+m lc= 18o.
What are the missing reasons in Wong's argument?
Reason 1: an alternating exterlor angle with one angle In the triangle
Reason 2: vertical angles with the other two angles In the trlangle
O
Reason 1: an alternating exterlor angle with one angle In the trlangle
Reason 2: complementary angles with the other two angles in the triangle
O

Wong constructs the following arqurnent:

Angle a is [missing reason 1] and therefore congruent to

Answers: 1

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Wong constructs the following arqurnent: Angle a is [missing reason 1] and therefore congruent to o...