Exemplar - Find the fourth angle — task. Maths CBSE Live product, Class 9 (2025-26).

1. Three angles of a quadrilateral are $79^°, 83^°$ and $101^°$, then the fourth angle is

2. A diagonal of a rectangle is inclined to one side of the rectangle at $27^°$. The acute angle between the diagonals is

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4. Exemplar - Find the fourth angle