- A64°
- B48°
- C68°
- D56°
Step-by-Step Solution
The exterior angle equals the sum of the two interior opposite angles: , so and ∠°.
Answer: A) 64°
Side BC of triangle ABC is produced to D. The exterior angle ∠ACD is 112°, and ∠B is three-fourths of ∠A. Find ∠A.
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