Naming Angles and Triangles

Name the vertex of the angle.

• E

• F

• D

• E, F, and D are vertices

This angle is written as......

•  ∠ABC

•  ∠ACB

• ∠BCA

• ∠CAB

∆ABC ≅ ∆LMN. Which statement is NOT true?

• LM ≅ AB

• ∆CAB ≅ ∆NLM

• ∠C ≅ ∠N

• BC ≅ ML

∆JIK ≅

• ∆TRS

• ∆RST

• ∆STR

• ∆TSR

∆ISR ≅

• ∆TRS

• ∆RST

• ∆STR

• ∆TSR

∠U = ≅

• ∠F

• ∠G

• ∠E

Given the diagram, which of the following must be true?

• ∆XSF ≅ ∆XTG

• ∆SXF ≅ ∆GXT

• ∆FXS≅ ∆XGT

• ∆FXS ≅ ∆GXT

△BAC ≅ △QPR. If ∠B = 2x and ∠Q = 10, find the value of x.

• 2

• 4

• 5

• -5