Answer:
See below.
Explanation:
1. m∠4 + m∠6 = 180
Reason: m∠4 = 120 & m∠6 = 60. 120 + 60 = 180
2. m∠4 + m∠5 = 180
Reason: m∠4 = 120 & m∠5 = 60. 120 + 60 = 180
3. m∠4 + m∠5 = 180 = m∠4 + m∠6
Reason: m∠4 = 120. m∠5 & m∠6 = 60. 120 + 60 = 180
4. m∠4 = m∠4
Reason: 120 = 120. No difference between
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m∠5 = m∠6
Reason: the type of triangle that we’re looking at is a equilateral triangle meaning all angle measures measure the exact same thing. If one measure measures 60, the other measure measures 60.
m∠4 + m∠6 = 180
Reason: m∠4 = 120 & m∠6 = 60. 120 + 60 = 180