Answer:In complete question. Please proof-read your question, insert the missing numerical value, and then resubmit your question.
Explanation:
Answer:
67°
Let x = unknown angle
If one of the angles is 23°, then:
⇒ 23 + 90 + x = 180
⇒ 113 + x = 180
⇒ x = 180 - 113
⇒ x = 67°
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