9.97793 About 10 if you rounded
Answer:
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Step-by-step explanation:
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Answer:
Option A.
Step-by-step explanation:
1. BC ║ ED [Given}
2. m∠ABC = 70° [Given}
3. m∠CED = 30° [Given]
4. m∠ABC = m∠BED [Corresponding angle theorem]
5. m∠BEC + m∠CED = m∠BED [Angle addition postulate]
6. m∠BEC + 30° = 70° [Substitution property of equality]
7. ∠BEC = 40° [Subtraction property of equality]
Therefore, option A is the answer.
Answer: el perímetro es 300
Step-by-step explanation:
