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What is the measure of this angle?

What is the measure of this angle?-example-1
User Ohyes
by
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2 Answers

4 votes

Answer:

100°

Explanation:

∠ACD and ∠ECB are vertical angles and are congruent, thus

∠ECB = ∠ACD = 100°

User Umuieme
by
5.6k points
4 votes

Answer: m<ECB = 100

It is 100 degrees because they are verticle angles, and verticle angles share the same degree.

User SushiGuy
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