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13 2. What is тZCBD? В А Д60° 809 AL 25° С D
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21 votes
13
2. What is тZCBD?
В
А Д60° 809
AL
25°
С
D

13 2. What is тZCBD? В А Д60° 809 AL 25° С D-example-1
User JSBob
by
3.3k points

1 Answer

11 votes

Answer:

∠CBD = 55°

Explanation:

With respect to ΔBCD, angle BDA is an exterior angle. As such, its value is the sum of remote interior angles CBD and BCD:

80° = ∠CBD +25°

∠CBD = 55° . . . . . . subtract 25° from both sides

User Permagnusson
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