The sum of all the angles of triangle is equals to 180o.
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Q1
Sum of internal angles of a triangle equals to
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Q2
If secα=135 where 270o<α<360o, then what is sinα equal to?
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Q3
'Sum of internal angles of a triangle is 180o' this statement is
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Q4
Prove that the sum of the angles of a triangle is 180o and using this theorem prove that exterior angle is equal to the sum of interior opposite angle.
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Q5
If A lies between 270o and 360o and sinA=−725, then