CK-12 Geometry-Concepts

(Marvins-Underground-K-12) #1

http://www.ck12.org Chapter 6. Polygons and Quadrilaterals


Example A


Find the other two angle measures in the kite below.


The two angles left are the non-vertex angles, which are congruent.


130 ◦+ 60 ◦+x+x= 360 ◦
2 x= 170 ◦
x= 85 ◦ Both angles are 85◦.

Example B


Use the Pythagorean Theorem to find the length of the sides of the kite.


Recall that the Pythagorean Theorem isa^2 +b^2 =c^2 , wherecis the hypotenuse. In this kite, the sides are all
hypotenuses.


62 + 52 =h^2122 + 52 =j^2
36 + 25 =h^2144 + 25 =j^2
61 =h^2169 =j^2

61 =h 13 =j
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