6.4
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Transcript of 6.4
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6.4
What If Consecutive Sides Are Equal?Pg. 16
Properties of Kites
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6.4 – What If Consecutive Sides Are Equal?_Properties of Kites
In this chapter you have studied shapes that have opposite sides equal. Today you are going to investigate shapes that have consecutive sides equal.
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6.20 – REFLECTION ON A SIDESamuel decided to reflect the triangle in the picture, as shown. a. Based on this reflection, mark any sides that are congruent.
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b. What shape did he make? What does this look like?
Kite
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c. Complete the statements based on your reflection. • _______________________ sides are congruent
• _______ pair of opposite angles are _________
consecutive
one congruent
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d. Samuel continued studying this shape and decided to draw in the two diagonals. Help Samuel by drawing in the other diagonal. Label the point of intersection E. What relationship is formed where the two diagonals cross? Complete the statements below.
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BD is____________ to AC
AE ____________
perpendicular
E
EC
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e. List the properties of kites
Consecutive sides are congruent
Diagonals are perpendicularOne pair of opposite angles congruent
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6.21– ANGLES IN KITESWEST is a kite. Find the missing angles.
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88
77
360 – 88 – 88 – 107
77°
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360 – 29 – 95 2 = 118°
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6.22 – AREA OF KITESFind the area of the kites. Don’t forget units.
4
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4½(9)(4)
18
½(9)(4) 18
½(5)(4) 10
½(5)(4) 10
A un256
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x2 + 242 = 252
x2 + 576 = 625x = 7
7
7
84
84
52.5
52.5
A un2273
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6.23 – SHAPES ON THE GRIDDetermine if the shape is a kite by performing the following calculations:
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Slopes of: LM = MN =
NO = OL =
0 6
0 6
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Lengths of: LM = MN =
NO = OL =
62 12 x2
36 1 x2
3 37
62 12 x2
36 1 x2
3 37 parallelogram
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Parallelogram
Rectangle
Rhombus
Square
Trapezoid
IsoscelesTrapezoid
Kite
Triangle
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Kite
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• Consecutive Sides Congruent
• Diagonals are perpendicular
• One pair of opposite angles congruent
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Add area of each triangle