Answer:
The triangles are similar by the AA similarity postulate
Step-by-step explanation:
The only thing we know is that the three angles are the same
70+30 +80 = 180 so the missing angle in each triangle is 80 in the first and 70 in the second
The triangles are similar by the AA similarity postulate
Answer:
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Step-by-step explanation:

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To compare ratios, write them as fractions. The ratios are equal if they are equal when written as fractions.
Answer:
1. (-3) and (-4)
2. (-5) and 6; vise versa