3 years ago

Solve A please! with steps

Mathematics

1 answer:

Vinil7 [7]3 years ago

7 0

Answer:

n=69

Step-by-step explanation:

the sum of all angle in a triangle is 180

=180-42

=138 ÷ 2

= 69

so n is 69

hopethis helps. have a good day.

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