Angle sum puzzle
Jerry had 4 angles written in his notebook, the sum of which was a right angle. The little sister rubberized one corner of it. Determine its size if the remaining angles remain written in the notebook: 12°34, 34°56, 56°9.
Final Answer:
You need to know the following knowledge to solve this word math problem:
algebraarithmeticUnits of physical quantitiesGrade of the word problem
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