Answer:
120°
Step-by-step explanation:
A line must add up to 180°. 
The sum of angles in a triangle also adds up to 180°.
Step 1: Find measures interior angles.
3x = 180
x = 60°
Step 2: Find measures of exterior angels.
x + 60 = 180
x = 120°
 
        
                    
             
        
        
        
Answer:
The answer is A on the last question....... 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
<h2>A. 7</h2>
Step-by-step explanation:
Put z = 5 to the expression (10 + 25) ÷ z:
(10 + 25) ÷ 5 = 35 ÷ 5 = 7
 
        
             
        
        
        
Answer:
HJ = 17
IK = 30
Step-by-step explanation:
to find HI :
 GH : 2
 HI : ?
 IJ : 12
GI : 7
 HI = GI - GH
HI = 7- 2
HI = 5
HI + IJ = HJ
5 + 12 = HJ
17 = HJ 
To find IK
IJ = ?
JK = 12
KL = ?
IL = 49
JL = 31
To find IK we need to find KL and IJ
KL = JL - JK
KL = 31 - 12
KL = 19
IJ = IL - (JK + KL)
IJ = 49 - 31
IJ = 18
IK = IJ + JK
IK = 18 + 12
IK = 30