Geometry
Notes 9-7
Hypotenuse Leg Theorem
Theorem 9.14 - If the hypotenuse and a leg of one triangle are congruent to
the corresponding parts of the other, then the triangles are
congruent. (HL)
Concurrence of angle bisectors of a triangle
Theorem 9.15: The angle bisectors of a triangle
are concurrent.
(concurrent- intersect in one point)
Incenter: the point where the angle bisectors of a triangle are concurrent
Ex. 1
A
Given:
Prove:
E
B
statements
F
D
C
reasons
1
A
Ex. 2:
Given:
D
B
Prove:
C
statements
Ex. 3
A
Given:
Prove:
statements
reasons
D
F
1
2
E
B
C
reasons
2