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Pre-Calculus Homework Solutions 15

# Pre-Calculus Homework Solutions 15 - 60 s 4s 2 4(2 8 61 3 w...

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60. s ¬ 2 4 s ¬ 4(2) ¬ 8 61. 3, w ¬ 8, s 2 w ws ¬ 3 8 8 2 ¬ 24 16 or 40 62. 3, w ¬ 8, s 2 s ( w ) ¬ 2(3 8) ¬ 2(11) or 22 Page 44 Geometry Activity: Constructing Perpendiculars 1. See students’ work. 2. The first step of the construction locates two points on the line. Then the process is very similar to the construction through a point on a line. Polygons Page 48 Check for Understanding 1. A regular decagon has 10 congruent sides, so divide the perimeter by 10. 2. Saul; Tiki’s figure is not a polygon. 3. P 3 s 4. Sample answer: Some of the lines containing the sides pass through the interior of the pentagon. 5. There are 5 sides, so the polygon is a pentagon. A line containing side NM will pass through the interior of the pentagon, so it is concave. The sides are not congruent, so it is irregular. 6. There are 6 sides, so the polygon is a hexagon. No line containing any of the sides will pass through the interior of the hexagon, so it is convex. The sides are congruent, and the angles are congruent, so it is regular.
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