Question

May somebody help me please . 12 points.

Answer 1

Answer to 17) - 35 degrees

Answer to 18) - 55 degrees

Answer to 19) - The exterior angle is 99 degrees and the third angle is 81 degrees

Answer to 20) - 89 degrees

Answer to 21) - 47.5 degrees

Have a nice day! ^_^

~abelxoconda

Answer 2

Answers:

17) 35 degrees

18) 55 degrees

19) Exterior angle: 99 degrees & Third angle: 81 degrees

20) 89 degrees

21) 47.5 degrees

Hope this helps! Have a great day!