Exercise 3. Known: as shown in the figure, a = D, ab ‖ DF, BC = EF, and the four points B, C, e and F are on the same line

Exercise 3. Known: as shown in the figure, a = D, ab ‖ DF, BC = EF, and the four points B, C, e and F are on the same line

Because ab ‖ DF
Therefore, B = F
And because ∠ a = D, BC = EF
It can be seen from one of the triangle equality theorems, two corners and one side
Triangle ABC is equal to triangle def
So AC = De
Specifically, I don't remember some of the theorems. It's too many years. You can change the symbols yourself

Elden Ring Premiere

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