ACTIVITY 1: PROVING Triangle Angle Bisector Theorem (TABT) Illustration If: HD bisects AHE, DA AH Then: Then: DE EH Notice: that sides on the numerators are adjacent. The same is true with the denominators. E Proof Prove DA AH DE EH Proof Extend AH to P such that EP | HD. Given A. HD bisects 2 AHE Statements Reasons No. Hints List down the given What happens to the bisected 2. ZAHE? Definition of angle bisector What can you say about HD and EP? By What can you conclude about LADH & Z DEP and Z1& L4? Corresponding angles are congruent. 4.

Algebra and Trigonometry (6th Edition)
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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GRADE 9- Learning Module in Mathematict
What Can you conclude albout
22& 23?
Alternate interior angles are
congruent.
What can you say about
23& L4 based on
statements 2. 4. and 5t
Transitive Property
What kind of triangle is
AHEP based on statement 6f
Base angles of isosceles
triangles are congruent.
AHEPis
8.
What can you say about the
Definition of isosceles triangles
sides opposite 24 & Z3
What can you say about
AAIDA AAPE using
AA Sinilarity Theorem
statement 4?
Lising statement 3, write
the proportional lengths of
AAPE
10
Definition of Similar Polygons
AE
All
AD
Use Segment Addition
Postulate for AP and AE
Segment Addition Postulate
11
Al + AP
AD+ DE
Inversion Property of
Proportion
Use Inversion Property of
12
Proportion statement 11.
IP
AD
DE
Decompose the fractions in
13
Principles in the operations of
fractions
AH
AH
AD
AD
statement 12 and simplify.
DE
HP
+]
AIHL
AD
Subtraction Property of
14
Simplify statement 13.
Equality
Use statement 8 in statement
Substitution
15
14.
Symmetric Property of
Equality
Inversion Property of
Proportion
Use symmetric Property in
16
statement 15.
Use Inversion Property in
17
statement 16.
un
Transcribed Image Text:GRADE 9- Learning Module in Mathematict What Can you conclude albout 22& 23? Alternate interior angles are congruent. What can you say about 23& L4 based on statements 2. 4. and 5t Transitive Property What kind of triangle is AHEP based on statement 6f Base angles of isosceles triangles are congruent. AHEPis 8. What can you say about the Definition of isosceles triangles sides opposite 24 & Z3 What can you say about AAIDA AAPE using AA Sinilarity Theorem statement 4? Lising statement 3, write the proportional lengths of AAPE 10 Definition of Similar Polygons AE All AD Use Segment Addition Postulate for AP and AE Segment Addition Postulate 11 Al + AP AD+ DE Inversion Property of Proportion Use Inversion Property of 12 Proportion statement 11. IP AD DE Decompose the fractions in 13 Principles in the operations of fractions AH AH AD AD statement 12 and simplify. DE HP +] AIHL AD Subtraction Property of 14 Simplify statement 13. Equality Use statement 8 in statement Substitution 15 14. Symmetric Property of Equality Inversion Property of Proportion Use symmetric Property in 16 statement 15. Use Inversion Property in 17 statement 16. un
ACTIVITY 1: PROVING Triangle Angle Bisector Theorem (TABT)
Illustration.
If:
HD bisects AHE,
HV Va
EH
Then:
Then: DE
Notice: that sides on the numerators
are adjacent. The same is true with the
E
denominators.
Proof
Prove
DA
AH
DE
EH
Proof
Extend AH to P such that
EP || HD
Given
HD bisects 2AHE
Hints
Statements
Reasons
No.
List down the given
What happens to the bisected
2.
ZAHE?
Definition of angle bisector
What can you say about
3
HD and EP?
By
What can you conclude
Corresponding angles are
4.
about ZADH & ZDEP and
congruent.
L1 & 24?
Transcribed Image Text:ACTIVITY 1: PROVING Triangle Angle Bisector Theorem (TABT) Illustration. If: HD bisects AHE, HV Va EH Then: Then: DE Notice: that sides on the numerators are adjacent. The same is true with the E denominators. Proof Prove DA AH DE EH Proof Extend AH to P such that EP || HD Given HD bisects 2AHE Hints Statements Reasons No. List down the given What happens to the bisected 2. ZAHE? Definition of angle bisector What can you say about 3 HD and EP? By What can you conclude Corresponding angles are 4. about ZADH & ZDEP and congruent. L1 & 24?
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