Explanation:
all angles must add up to 180. Add 43 and 38 to get 81. Subtract that from 180. so, 180 - 81 = 99
the answer is 99 degrees
Answer:
Sum of angles of a triangle = 180
43 + 38 +x = 180
81 + x = 180
x = 180 - 81 = 99
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