Use the diagram below for 4-6
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Answer: angle 2 is 90 angle 1 is 90
4&5 are acute
1&4&5 are obtuse/180
3&2 are obtuse/180
1&3 are right angles/90
Step-by-step explanation:this will take way to long to explain so just ask your teacher if you don't understand it. but these are right.