How do you do congruent triangle proofs? ctrlGallerycharly Petero1.27.21NameDateClassMath HBReteachCongruent Triangles continuedYou can prove triangles congruent by using the definition of congruence.Given: LD and LB are right angles.ZDCE LBCAC is the midpoint of DB.ED = AB, EC = ACProve: AEDC AABCProof:StatementsReasons1. LD and ZB are rt. s.1. Given2. LD LB2 Detinition of midpoint3. LDCELBCA3. Given4.4. LELA5. Given5. C is the midpoint of DB.6.6. DC = BC7. Given7. ED AB, EC = AC8. Def. of > As8. AEDC AABCComplete the proof.ven: LQLRPis the midpoint of QR.= SR, NP = SPREASPRReasons

Here, we have to proof triangles are congruent. It is given that ,

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Elementary Geometry For College Students, 7e

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How do you do congruent triangle proofs?

ctrl
Gallery
charly Peter
o1.27.21
Name
Date
ClassMath HB
Reteach
Congruent Triangles continued
You can prove triangles congruent by using the definition of congruence.
Given: LD and LB are right angles.
ZDCE LBCA
C is the midpoint of DB.
ED = AB, EC = AC
Prove: AEDC AABC
Proof:
Statements
Reasons
1. LD and ZB are rt. s.
1. Given
2. LD LB
2 Detinition of midpoint
3. LDCELBCA
3. Given
4.
4. LELA
5. Given
5. C is the midpoint of DB.
6.
6. DC = BC
7. Given
7. ED AB, EC = AC
8. Def. of > As
8. AEDC AABC
Complete the proof.
ven: LQLR
Pis the midpoint of QR.
= SR, NP = SP
REASPR
Reasons

Polygon with three sides, three angles, and three vertices. Based on the properties of each side, the types of triangles are scalene (triangle with three three different lengths and three different angles), isosceles (angle with two equal sides and two equal angles), and equilateral (three equal sides and three angles of 60°). The types of angles are acute (less than 90°); obtuse (greater than 90°); and right (90°).

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