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Question
The number of right angles in a straight angle is ______ and that in a complete angle is ______.
Solution
The number of right angles in a straight angle is 2 and that in a complete angle is 4.
Explanation:
Straight-line have 180°, complete angle have 360° and Right angle have 90°.
⇒ 2 × 90 = 180
⇒ 4 × 90 = 360
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