Read and understand each item carefully. Write only the letter of the correet answer. For numbers 1-5, refer to the given figure at the right. Select from the choice below that corresponds to the correct answer. a. Yes b. No c. Insufficient Data Given the following conditions, is line m parallel to line n? 1. mangle 1=100 ° and mangle 5=100 ° 2. mangle 3=80 ° and mangle 5=80 ° 3. mangle 4=100 ° and mangle 6=80 4. mangle 1+mangle 7=180 D 5. mangle 2=80 °
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