Answer:
13/36
Step-by-step explanation:
1/4(1/3)^2+1/3
1/4(1/9)+1/3
1/36+1/3
1/36+12/36
17. 62 degrees
18. 38 degrees
hi dara
Answer: n is 3
Step-by-step explanation: n can only be 3 as a triangle is the only polygon whose internal angles have a sum of 180 degrees