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IrinaVladis [17]
2 years ago
5

Please HELP me!!!! I will mark as brainlist!!!

Mathematics
1 answer:
xxMikexx [17]2 years ago
4 0

Answer:

4. CDB+DBE= CBE (55+35=90)

5. Definition of a right angle (90 degrees)

6. Linear pair postulate ( i think)

7. ABC and CBE are both 90 degrees

Step-by-step explanation:

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