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Which of the following is true?

Triangle B C D. The exterior angle at B is labeled 1 and the interior angle is labeled 2. Angle C has measure 70 degrees. The exterior angle at D has measure 130 degrees.
A. m∠BCD − m∠DBC = 10°
B. m∠BCD − m∠DBC = 20°
C. m∠BCD − m∠DBC = 60°
D. m∠BCD − m∠DBC = 80°

Which of the following is true? Triangle B C D. The exterior angle at B is labeled-example-1

2 Answers

7 votes

Answer:

answer :J LOOK THE DIAGRAM CAREFULLY AND UNDERSTAND

User Kyle Truong
by
8.3k points
4 votes

Answer:

A <c - <b = 10

Explanation:

Which of the following is true? Triangle B C D. The exterior angle at B is labeled-example-1
User Milo Bem
by
7.9k points

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