Angles in Geometry - CBSE Maths Lesson for Class V \r
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About this Video :\r
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Angles consist of 2 arms and a vertex.\r
It is the degree measure between 2 arms having a common vertex.\r
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Types of Angles Acute Angle Obtuse Angle Right Angle Straight Angle Reflex Angle Complete Angle\r
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1. Acute Angle\r
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An Angle whose measure is between Zero degree & 90 degree is called acute angle.\r
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2. Obtuse Angle\r
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An Angle whose measure is between 90 degree & 180 degree is called obtuse angle.\r
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3. Right Angle\r
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An Angle whose measure is between 90 degree.\r
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4. Straight Angle\r
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An Angle whose measure is exly 180 degree.\r
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5. Reflex Angle\r
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An Angle whose measure is greater than 180 degree but less than 360 degree.\r
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6. Complete Angle\r
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An Angle whose measure is 360 degree.\r
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Complementary Angles\r
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Pair of Angles whose sum is 90 degree.\r
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Supplementary Angles\r
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Pair of Angles whose sum is 180 degree.\r
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