1.23 Classwork

Figure #1

1) Use the pink highlighter to mark segments AE and LE above as the legs of the isosceles triangle. 2) Use the blue highlighter to mark the base of the isosceles triangle that contains these legs. 3) Use the red pen to mark pair of congruent base angles of the isosceles triangle.

Figure #2

1) Use the pink highlighter to mark segments LE and LG above as the legs of the isosceles triangle. 2) Use the blue highlighter to mark the base of the isosceles triangle that contains these legs. 3) Use the red pen to mark pair of congruent base angles of the isosceles triangle.

Figure #3

Question #3

1) Use the pink highlighter to mark the legs of the isosceles triangle. 2) Use the blue highlighter to mark the base of the isosceles triangle. 3) Use the red pen to mark pair of congruent base angles of the isosceles triangle. Then, determine the value of y.

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A
44°
B
48°
C
92°
D
180°

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Figure #4

Question #4

1) Use the pink highlighter to mark the legs of the isosceles triangle. 2) Use the blue highlighter to mark the base of the isosceles triangle. Then, determine the value of z.

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