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Questions and Answers
What is a line segment?
What is a line segment?
- A portion of a line with variable length
- A portion of a circle
- An infinite portion of a line
- A portion of a line with fixed length (correct)
How can line segments be compared by observation?
How can line segments be compared by observation?
- By comparing their locations in a plane
- By measuring their angles
- By looking at them and judging based on visual appearance (correct)
- By using tracing paper and comparing the tracings
Why is comparison by tracing used to compare line segments?
Why is comparison by tracing used to compare line segments?
- To determine if the line segments are parallel
- To visually see if two line segments are the same length (correct)
- To measure the angles formed by the line segments
- To compare the midpoints of the line segments
What method is used to compare line segments when their lengths may not be obvious?
What method is used to compare line segments when their lengths may not be obvious?
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Why is it important to have methods for comparing line segments?
Why is it important to have methods for comparing line segments?
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What is the disadvantage in comparing line segments by mere observation?
What is the disadvantage in comparing line segments by mere observation?
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What kind of errors can occur if viewing the mark on the ruler is not proper? How can one avoid it?
What kind of errors can occur if viewing the mark on the ruler is not proper? How can one avoid it?
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Why is it better to use a divider than a ruler while measuring the length of a line segment?
Why is it better to use a divider than a ruler while measuring the length of a line segment?
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What do we mean by 7.7 cm?
What do we mean by 7.7 cm?
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How many millimeters make one centimeter?
How many millimeters make one centimeter?
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