The answer to the question
Answer:
15
Step-by-step explanation:
12 X 15 is 180, which is closest to 187, we have to add a 5 in the space next to 71 and 180 under 187
Answer:
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Answer:
166°
Step-by-step explanation:
Since ∠A = ∠B,
the equation below helps to find the value of x and angle A:
- 7x + 40° = 3x + 112°
- 7x - 3x = 112° - 40°
- 4x = 72°
- x = 72°/4
- x = 18°
- ∠A = 7*18° + 40° = 166°