Using Triangle Congruence Theorems

Question 1

Which congruency theorem can be used to prove that △ABD ≅ △DCA?

Revolt · Accepted Answer

SAS

Question 2

SSS✔ HLSAS AAS

Revolt · Accepted Answer

✔ HL

Question 3

ASA✔ SAS AAS SSS

Revolt · Accepted Answer

SAS; We are given AB ≅ AE and BC ≅ DE. This means ABE is an isosceles triangle. Base angles in an isosceles triangle are congruent based on the isosceles triangle theorem, so ∠ABE ≅ ∠AEB. We can then deter: SAS; We are given AB ≅ AE and BC ≅ DE. This means ABE is an isosceles triangle. Base angles in an isosceles triangle are congruent based on the isosceles triangle theorem, so ∠ABE ≅ ∠AEB. We can then deter: AD

Question 4

BA✔ AD AE BE

Revolt · Accepted Answer

✔ AD

Question 5

It is given that ∠TUW ≅ ∠SRW and RS ≅ TU. Because ∠RWS and ∠UWT are vertical angles and vertical angles are congruent, ∠RWS ≅ ∠UWT. Then, by AAS, △TUW ≅ △SRW. Because CPCTC, SW ≅ TW and WU ≅ RW. Because of the definition of congruence, SW = TW and WU = RW. If we add those equations together, SW + WU = TW + RW. Because of segment addition, SW + WU = SU and TW + RW = TR. Then by substitution, SU = TR. If segments are equal, then they are congruent, so SU ≅ TR. Because of [___], △TRS ≅ △SUT, and because of [___], ∠RST ≅ ∠UTS.

Revolt · Accepted Answer

SAS; It is given that ∠TUW ≅ ∠SRW and RS ≅ TU. Because ∠RWS and ∠UWT are vertical angles and vertical angles are congruent, ∠RWS ≅ ∠UWT. Then, by AAS, △TUW ≅ △SRW. Because CPCTC, SW ≅ TW and WU ≅ RW. Becau: SAS; It is given that ∠TUW ≅ ∠SRW and RS ≅ TU. Because ∠RWS and ∠UWT are vertical angles and vertical angles are congruent, ∠RWS ≅ ∠UWT. Then, by AAS, △TUW ≅ △SRW. Because CPCTC, SW ≅ TW and WU ≅ RW. Becau: CPCTC

Question 6

SAS ASA AAS✔ CPCTC

Revolt · Accepted Answer

✔ CPCTC

Question 7

✔ DEB DBE EDB EBD

Revolt · Accepted Answer

DEB; ♣: Δ ≅ ΔAFC ♦:: DEB; ♣: Δ ≅ ΔAFC ♦:: HL

Question 8

ASA AAS✔ HL SAS

Revolt · Accepted Answer

✔ HL

Using Triangle Congruence Theorems Answers

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