D = 8cm H=8cm - Gauthmath

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Question

Given: ∠ 1≌ ∠ 3, ∠ 2≌ ∠ 4 Conclusion: overline BC≌ overline EDSHOW LESS0

Solution

user avatar imagePlease see the explanation.Firstly, because ∠ 2≌ ∠ 4 so triangle CFD is an equicrural  triangle, which means overline CF≌ overline DF Next, because ∠ 5 and ∠ 6 are a pair of vertical angles  then ∠ 5≌ ∠ 6 To sum up, we get beginarrayl ∠ 1≌ ∠ 3 overline G≌ overline BF ∠ 5≌ ∠ 6endarray. (AS A) (Congluence Theorem  of Triangles)  That means triangle CBF and triangle DEF are congruent.  Then, we can get overline BC≌ overline EDSHOW LESSClick to rate:48.1(27 votes)Search questionBy textBy image/screenshotDrop your file here orClick Hereto upload

Từ khóa » D=8 Cm H=8cm