3 years ago

AB is a straight line.

Mathematics

2 answers:

wel3 years ago

4 0

Answer:

109

Step-by-step explanation:

AB = 180° ( straight line )

X = 180 - 42 - 29

= 138 - 29

= 109

zavuch27 [327]3 years ago

3 0

Answer:

Angle on straight line is 180

a+b+c is 180

a is 42

b is the unknown x

c is 29

42+x+29 is equal to 180

71+x is equal to 180

collect like terms

x is equal to 119 degree

Step-by-step explanation:

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