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.
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Answer:
1)
2)
3)
4)
Step-by-step explanation:
1) Since the whole angle is , and to find the other angle, which is labeled as
, you subtract
from
:
2) Since you already have two angle measures and
, you add them up and subtract it from
to get the angle measure for
:
3) Same thing from number 1. Subtract from
:
4) Same thing from number 2. Add and
and subtract it from
: