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avatar+1685 

Which pair of angle measurements are supplements?

 

A. 59; 121

B. 89; 99

C. 62; 138

D. 30; 60

 

 

 

 

In the diagram below, lines a and b are parallel and cut by transversal, t.  If angle 1 is 120 degrees, find the measure of angle 8.

 

 

A. 60

 

B. 180

 

C. 120

 

D. 90

 Feb 17, 2020
 #1
avatar+109740 
+2

Supplementary angles always sum to 180 °

 

A  is  correct

 

 

 

Second one

 

Angle 1  = Angle  5  [   corresponding angles ] 

 

Angle 5  + angle 8  =  180     [ supplementary pair ]

 

120  +  angle 8  = 180      subtract  120 from both sides

 

angle  8  = 60 

 

 

 

cool cool cool

 Feb 17, 2020

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