XYZ is a triangle and YA || XZ. Y A 4/1 3 Z Prove that the interior angles of a triangle sum to 180 degrees by moving statements into the correct boxes. Step 1: XYZ is a triangle and YA || XZ because this is given information. Step 2: 2 2 4 and 23 25 because Step 3: m24 + mZ1+mZ5= 180° because angles that complete a line sum to 180°. Step 4: m/2 + mZ1+mZ3= 180° because|

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.1: Angles
Problem 1E
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XYZ is a triangle and YA || XZ.
Y
A
4/1
3
X
Prove that the interior angles of a triangle sum to 180 degrees by moving statements into the correct boxes.
Step 1: XYZ is a triangle and YA || XZ because this is given information.
Step 2: 22 2 4 and 23 2 25 because
Step 3: m/4 + mZ1+ mZ5 = 180° because angles that complete a line sum to 180°.
Step 4: m/2 + m21+ mZ3 = 180° because
%3D
Transcribed Image Text:XYZ is a triangle and YA || XZ. Y A 4/1 3 X Prove that the interior angles of a triangle sum to 180 degrees by moving statements into the correct boxes. Step 1: XYZ is a triangle and YA || XZ because this is given information. Step 2: 22 2 4 and 23 2 25 because Step 3: m/4 + mZ1+ mZ5 = 180° because angles that complete a line sum to 180°. Step 4: m/2 + m21+ mZ3 = 180° because %3D
when parallel lines are cut by a transversal, alternate
interior angles are congruent
when parallel lines are cut by a transversal,
corresponding angles are congruent
when parallel lines are cut by a transversal, alternate
exterior angles are congruent
of the addition property of equality
of the subtraction property of equality
of the substitution property of equality
Transcribed Image Text:when parallel lines are cut by a transversal, alternate interior angles are congruent when parallel lines are cut by a transversal, corresponding angles are congruent when parallel lines are cut by a transversal, alternate exterior angles are congruent of the addition property of equality of the subtraction property of equality of the substitution property of equality
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