6.1 &
+ Question 6.1 & 6.2 – 10
+ Answer 6.1 & 6.2 – 10 The figure is a concave polygon. It has more than three sides. Each side is intersected by another side at either endpoint and each side in a segment (not curved).
+ Question 6.1 &
+ Answer 6.1 & 6.2 – 20 The figure is not a polygon because two sides are not intersected at both sides by another side.
+ Question 6.1 &
+ Answer 6.1 & 6.2 – 30 The m D is 120 o. The sum of the measures of the interior angles of quadrilateral is 360 o.
+ Question 6.1 &
+ Answer 6.1 & 6.2 – 40 A. Pentagon (5 sides)
+ Question 6.1 &
+ Answer 6.1 & 6.2 – 50 J. 45 o. The sum of the measures of the interior angles of quadrilateral is 360 o.
+ Question
+ Answer 6.3 – 10 C. Bisect each other
+ Question
+ Answer 6.3 – 20 y = 7 x = 61
+ Question 6.3 – 30
+ Answer 6.3 – 30 y = 110 x = 100
+ Question
+ Answer 6.3 – 40 The quadrilateral is a parallelogram because the diagonals bisect each other.
+ Question
+ Answer 6.3 – 50 The quadrilateral is not a parallelogram because the opposite angles are not congruent.
+ Question
+ Answer 6.4 – 10 That all four angles are right angles.
+ Question
+ Answer 6.4 – 20 b = 4 a = 11
+ Question
+ Answer 6.4 – 30 F. 3
+ Question
+ Answer 6.4 – 40 J. trapezoid
+ Question
+ Answer 6.4 – 50 Square: all sides are congruent and all angles are right angles.
+ Question
+ Answer 6.5 – 10 D. x = 95, y = 85
+ Question
+ Answer 6.5 – 20 D. 11
+ Question
+ Answer 6.5 – 30 = 65 o = 122 o
+ Question
+ Answer 6.5 – 40 14
+ Question n y
+ Answer 6.5 – 50 MN = 24
+ Question
+ Answer 6.6 – 10 parallelogram
+ Question
+ Answer 6.6 – 20 square
+ Question
+ Answer 6.6 – 30
+ Question
+ Answer 6.6 – 40
+ Question
+ Answer 6.6 – 50 Yes, because opposite sides are congruent and one angle is given as right, the other angles must also be right.