A statement and portions of the flowchart proof of the statement are shown.
2 answers:
Answer :- Angle addition postulate is the reason which should appear in the box labeled 1.
Explanation:-
Angle addition postulate states that for a given angle ∠AOC if P is interior of ∠AOC then ∠AOC=∠AOP+∠POC.
In the given figure it can be seen that
C is interior of ∠BAD then by angle addition postulate
∠BAC+∠CAD=∠BAD which in box 1.
Thus the second option is correct . "Angle Addition Postulate" is the reason which should appear in the box labeled 1.
M<BAD = m<BAC + m<CAD
m<BAD = 20 + 15
m<BAD = 35
<span>Angle Addition Postulate
answer
</span><span>Angle Addition Postulate</span>
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