Two intersecting lines l and m form an angle of 56° with each other. The reflection of a point (–4, 1) along the line l followed by a reflection along line m will cause a rotation. Question 18 options: A) 56° B) 112° C) 180° D) 28°

  B)  112°

Step-by-step explanation:

After the double reflection the point is effectively rotated by an amount that is double the angle between the lines of reflection:

  2·56° = 112°

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In the attached, lines l and m are separated by 56°, as required by the problem statement.

answer: the area of the parallelogram below is 42 square meters.

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answer: c

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