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In the diagram, m < ACB = 65. m < ECD = A. 180 B. 115 C. 65 D. 90

User Reb
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1 Answer

7 votes

Answer:


\angle ECD = 115

Explanation:

Given


\angle ACB = 65

Required

Determine
\angle ECD

From the attached image, we have:


\angle ACB +\angle ECD = 180 ---- angle on a straight line

This gives:


65 +\angle ECD = 180

Subtract 65 from both sides


\angle ECD = 180 - 65


\angle ECD = 115

In the diagram, m < ACB = 65. m < ECD = A. 180 B. 115 C. 65 D. 90-example-1
User Olpers
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