IDNLearn.com connects you with a community of knowledgeable individuals ready to help. Our Q&A platform offers reliable and thorough answers to help you make informed decisions quickly and easily.
Answer:
1) 180 degrees; straight angle
2) (5x-18)+(4x+45)=108
3) x=17
4) 90 degrees; right angle
5) (3x+6)+(5x+4)=90
6)x=10
Step-by-step explanation: