Insurucuon Active
Proving the Sum of the Interior Angle Measures of a
Triangle Is 180°
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Given y ll z
Prove: m25+ m2 2 + m26 = 180°
Angles Lines Statements Reasons
21
23
25
26
m21
m23
m25
m26
A
M
Statements
3
Reasons
1
2
y
6
7 z
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