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Svetradugi [14.3K]
3 years ago
5

Triangle ABC is congruent with triangle CDA Find the value of the pronumeral x.

Mathematics
1 answer:
brilliants [131]3 years ago
6 0

Answer:

x = 25

Step-by-step explanation:

Since the triangles are congruent then corresponding angles are congruent.

That is ∠ D and ∠ B are corresponding angles and congruent, thus

4x - 20 = 2x + 30 ( subtract 2x from both sides )

2x - 20 = 30 ( add 20 to both sides )

2x = 50 ( divide both sides by 2 )

x = 25

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