Pembe (jiometria) : Tofauti kati ya masahihisho

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An [[acute angle]] is an angle less than 90°. A [[right angle]] is an angle equal to 90°. An [[obtuse angle]] is an angle greater than 90°. A [[straight angle]] is an angle equal to 180°. A [[reflex angle]] is an angle greater than 180° but less than 360°.
 
''Supplementary angles'' are two angles with the sum equal to 180°. ''Complementary angles'' are two angles with the sum equal to 90°.
 
People usually use a [[protractor]] to measure and draw angles. Sometimes, people use an [[angle ruler]] to measure angles.
 
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