Answer:
<5 = 105
Step-by-step explanation:
<4 = 105
Because l and m are parallel, <4 and <7 are supplementary (they = 180) That means you can find <7
<4 + <7 = 180
105 + <7 = 180 Subtract 105 from both sides
<7 = 180 - 105 Combine the right side
<7 = 75
<5 and <7 are also supplementary because they have their bases on line m
<5 + <7 = 180
<5 + 75 = 180 Subtract 75 from both sides
<5 = 180 - 75
<5 = 105
You should understand that all 8 angles are either 75 degrees (<2,3,6,7) or 105 degrees (<1,<4,<5,<8)
