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10 Questions

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Measuring Line Segments in Geometry

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Questions and Answers

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?

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?

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?

Comparison by tracing Signup and view all the answers

Why is it important to have methods for comparing line segments?

To accurately determine which one is longer Signup and view all the answers

What is the disadvantage in comparing line segments by mere observation?

It can lead to errors due to difficulties in viewing the marks on the ruler Signup and view all the answers

What kind of errors can occur if viewing the mark on the ruler is not proper? How can one avoid it?

Errors due to angular viewing; avoid by correctly positioning the eye vertically above the mark Signup and view all the answers

Why is it better to use a divider than a ruler while measuring the length of a line segment?

A divider reduces errors due to difficulties in viewing marks on the ruler Signup and view all the answers

What do we mean by 7.7 cm?

$7 + 7/10$ cm Signup and view all the answers

How many millimeters make one centimeter?

10 mm Signup and view all the answers