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Question
Find the measure of the angle shown in figure. (First estimate with your eyes and then find the actual measure with a protractor).
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Solution
On observing with eyes - 60°
On measuring with protractor - 65°
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Fill in the blanks with acute, obtuse, right or straight:
An angle whose measure is less than that of a right angle is ______.
Find the measure of the angle shown in figure. (First estimate with your eyes and then find the actual measure with a protractor).
Find the measure of the angle shown in figure. (First estimate with your eyes and then find the actual measure with a protractor).
Investigate
In the given figure, the angle measures 30°. Look at the same figure through a magnifying glass.
- Does the angle become larger?
- Does the size of the angle change?
Which part of the protractor must be placed exactly on the vertex of the angle?
A straight angle is geometrically equivalent to which fraction of a full circle rotation?
