Question

Prove <DOC = [<DOB - <DOA] ​

Answer 1

Answer:

Proof

Step-by-step explanation:

DOC + COB + DOA = 180                                                 (Rays on a line)

DOC = 180 - COB - DOA

DOC = 180 - 90 - DOA

DOC = 90 - DOA

DOC = 90 + DOC - DOC - DOA

DOC = DOB - DOC - DOA                                    (since 90 + DOC = DOB)

2DOC = DOB - DOA

DOC = 1/2 * (DOB - DOA) proved

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