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3 years ago

10

Work out the size of angle x

2 answers:

marin [14]3 years ago

3 0

Answer:

129°

Step-by-step explanation:

marishachu [46]3 years ago

3 0

Step-by-step explanation:

soln,

51°+x=180°[exterior angles]

or,x=180°-51°

or,x=129°

•°•x=129°

hope it helps

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