ASAP pa answer this plsss

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Problem 1 :-
(Linear Pair)
what is linear pair?
Linear pair of angles are formed when two lines intersect each other at a single point.
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Problem 2 :-
(Given)
as box like angle is made.
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Problem 3:-
b = 43°
Reason:-
VOA
When two lines intersect each other, then the opposite angles, formed due to intersection are called vertical angles or vertically opposite angles.
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Problem 4 :-
A point is of 360°
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Problem 5:-
b + 35° = 180°
LP (Linearpair)
b = 180° - 35°
b = 145°