Question

1. What does the mark of the angles and sides of the triangle indicate?

2. Are there angles and sides that have the same measure length? Explain your answer.

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Answer 1

2. You see them in your face:

`\displaystyle m∠F ≅ m∠C;`
`$\overline{FD}$` ≅
`$\overline{CA}$`

`m∠E ≅ m∠B;`
`$\overline{FE}$` ≅
`$\overline{CB}$`

`m∠D ≅ m∠A;`
`$\overline{ED}$` ≅
`$\overline{BA}$`

To sum up, corresponding parts of congruent triangles are always congruent [CPCTC].

1. The edge and angle markings of both triangles represent all corresponding parts. Each angle and edge corresponds with another angle and edge.

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