∠1 and ∠2 are supplementary angles. ∠1 and ∠3 are vertical angles. If m ∠2=72 degrees, then find m ∠3
2 answers:
Answer:
∠3 = 108°
Step-by-step explanation:
∠1 + ∠2 = 180° because they are supplementary angles
∠2 = 72° given
∠1 = 180° - 72° = 108°
∠1 = ∠3 because they are vertical angles
∠3 = 108°
Answer:
m<3 = 108
Step-by-step explanation:
Since <1 and <2 are supplementary, the equation is:
<1 + <2 = 180
Since <1 and <3 are vertical angles. the equation is:
<1 = <3
To find m<3:
<2 + <3 = 180
72 + <3 = 180
<3 = 180 - 72
<3 = 108
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