Respuesta :

Question 8: 
m<1 = 148 degrees 
m<1 = m<2 Alternate angles in parallel lines
m<2 = 148 degrees 
m<3 = 180 - m<2 Supplementary angles/angles on a straight line = 180
m<3 = 180 - 148
m<3 = 32 degrees 

Question 7: 
Sum of interior angles of a triangle = 180 degrees 
Using that information determine angle C
Then use supplementary angles or angles on a straight line to determine D (exterior angle) 

I hope question 7 makes sense :) 

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