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Unit 07. Searching for Triangles Activity 1 P. 64~65
1.
P. 62~63
2.
A C
B E

C(E) C(E) C(E) 3 . Sample Answers
D F
E(C) E(C)
G E(C)

C(E) 4.
A(B) D
C(E)
E(C)
D
C(E) E(C)
A(B) E(C)
GF
G
Activity 2 P. 66~67
E(C)
A(B) F 2 . A triangle with 2 right angles. If 2 right angles

C(E) cannot be made are drawn, 2 of the sides will

C(E) G not be able to intersect.
A(B)
Activity 3 P. 68~69
F 1 . a . right triangle
b . acute triangle
D c . obtuse triangle
C(E)

A(B)
F

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