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Assertion: In a quadrilateral, three angles are 55°,65° and 150° . Then the fourth angle is 90°

Reason: The sum of int

By Maya

Assertion: In a quadrilateral, three angles are 55°,65° and 150° . Then the fourth angle is 90°

Reason: The sum of interior angles of a quadrilateral is 360∘

About the author
Maya

given that (x-3) is a factor of x^4-x^3-8x^2+ax+12 show that (x+a) is a factor of x^2-2x+4​

What are teachers around the world concerned for?
(a) The nature of education children are getting
(b) How the cultural

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