QUESTION IMAGE
Question
write a two - column proof for the following. given: m∠2 = 30 m∠1 = 2m∠2 prove: m∠3 + m∠4 = 90 (do not include the degree symbol in your answers.) statements reasons 1) m∠2 = 30 1) given 2) m∠1 = 2m∠2 2) given 3) m∠1 = 2( ) 3) substitution
Step1: Sustituir valor de m∠2
Como m∠2 = 30 y m∠1 = 2m∠2, entonces m∠1 = 2(30).
Step2: Calcular m∠1
m∠1 = 60.
Step3: Usar ángulos opuestos por el vértice
m∠1 = m∠3 y m∠2 = m∠4 (ángulos opuestos por el vértice son iguales), entonces m∠3 = 60 y m∠4 = 30.
Step4: Sumar m∠3 y m∠4
m∠3 + m∠4 = 60+30 = 90.
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