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Flashcards: Understanding Elementary Shapes 38 Flashcards 
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What are the two main methods for comparing line segments as discussed in the content? |
Card: 1 / 38 |
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The two main methods for comparing line segments are observation and using a ruler.
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Card: 2 / 38 |
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Fill in the blank: The method of comparison using tracing paper requires ___ to accurately determine the longer line segment. |
Card: 3 / 38 |
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Accuracy
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Card: 4 / 38 |
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What is an advantage of using a divider over a ruler for measuring line segments? |
Card: 5 / 38 |
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A divider allows for more precise measurement by avoiding the thickness issue of a ruler.
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Card: 6 / 38 |
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Riddle: I have no corners, yet I can be closed. I am often round and can roll. What shape am I? |
Card: 7 / 38 |
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Circle
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Card: 8 / 38 |
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Fill in the blank: Shapes can be categorized into different types such as line segments, angles, triangles, ___, and circles. |
Card: 9 / 38 |
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Polygons
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Card: 10 / 38 |
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What is the significance of measuring line segments accurately? |
Card: 11 / 38 |
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Accurate measurement allows for precise comparisons between different shapes and is essential in various applications in mathematics and real-life scenarios. |
Card: 12 / 38 |
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When you turn to face east from the north, what type of angle have you made? |
Card: 13 / 38 |
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You have made a right angle (90 degrees).  |
Card: 14 / 38 |
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If you turn from north to south, how many degrees are in that angle? |
Card: 15 / 38 |
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You have made a straight angle, which is 180 degrees. |
Card: 16 / 38 |
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How many right angles does it take to complete a full revolution? |
Card: 17 / 38 |
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It takes four right angles to complete a full revolution.  |
Card: 18 / 38 |
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True or False: A straight angle is formed by turning from south to north. |
Card: 19 / 38 |
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True, because that is a straight angle (180 degrees). |
Card: 20 / 38 |
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Fill in the blank: The angle formed by two adjacent directions is ___ degrees. |
Card: 21 / 38 |
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90. |
Card: 22 / 38 |
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What is the total degree measure between the hour hand and the minute hand at 7:00? |
Card: 23 / 38 |
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The total degree measure is 210 degrees. |
Card: 24 / 38 |
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Riddle: I am an angle that measures exactly 90 degrees, what am I? |
Card: 25 / 38 |
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A right angle. |
Card: 26 / 38 |
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If you turn clockwise from south to west, how many right angles do you turn? |
Card: 27 / 38 |
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You turn one right angle (90 degrees). |
Card: 28 / 38 |
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A right angle measures exactly ___ degrees. |
Card: 29 / 38 |
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90 degrees.  |
Card: 30 / 38 |
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What is the defining characteristic of a straight angle? |
Card: 31 / 38 |
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A straight angle measures exactly 180 degrees and forms a straight line.  |
Card: 32 / 38 |
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Fill in the blank: A reflex angle is larger than a straight angle but less than a ___ degree angle. |
Card: 33 / 38 |
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360 degree angle.  |
Card: 34 / 38 |
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Riddle: I am an angle that is more than a right angle but not a straight line. What am I? |
Card: 35 / 38 |
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An obtuse angle. |
Card: 36 / 38 |
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Classify the angle of 145 degrees: acute, obtuse, straight, right, zero, or complete. |
Card: 37 / 38 |
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145 degrees is an obtuse angle. |
Card: 38 / 38 |
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 Completed! Keep practicing to master all of them. |
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