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Answers
Answer:
Answer for question 5.1 :
b) 50 degrees
Answer for question 5.2 :
c) 130 degrees
Answer:
5.1 A) 40 degrees
5.2 c) 130 degrees
Step-by-step explanation:
5.1 explanation
the angle between the ground and the wall is always 90 degree as they are perpendicular .
then we shall use Angle sum Property of triangle which says that sum of all angles of triangle is 180 degree
therefore buy angle sum property
50 +90+ angle between ladder and wall = 180 degree
140 +Angle between ladder and wall =180 degree
Therefore angle between ladder and wall = 180-140=40 degrees
5.2 solution
we can solve this solution by the help of linear pair
Linear pair says that the obtuse angle between ladder and ground and the acute angle both add up to 180 degrees
since from the figure, the acute angle is 50 degrees
therefore,
Obtuse angle between ladder and ground + 50 degree =180
therefore Obtuse angle between ladder and ground=180-50 =130 degrees
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