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Classifying Common Angles

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Explanations 1

Now that we know what an angle is, we will start classifying them by their measures. Generally speaking, there are four types of common angles. Let's start with the smallest deg…
By Elise Molinaro, Alex Federspiel

Problems 4

Which of the following, when added to an angle, could make the result acute?
In the above figure, we'll name the angles A, B, C from left to right on the top row, and D, E, F from left to right on the bottom row. Which of those angles are acute? Select a…
In the above figure, we'll name the angles A, B, C from left to right on the top row, and D, E, F from left to right on the bottom row. Which of those angles are obtuse? Select …
In the above figure, we'll name the angles A, B, C from left to right on the top row, and D, E, F from left to right on the bottom row. Which of those angles are right? Select a…