Exemplar Exercise Problems I — task. Mathematics CBSE, Class 9.

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1. Three angles of a quadrilateral are \(75^°, 90^°\) and \(75^°\), then the fourth angle is

\(90^{\circ}\)
\(120^{\circ}\)
\(95^{\circ}\)
\(105^{\circ}\)

2. A diagonal of a rectangle is inclined to one side of the rectangle at \(25^°\). The acute angle between the diagonals is

\(50^{\circ}\)
\(55^{\circ}\)
\(25^{\circ}\)
\(40^{\circ}\)

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