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An exterior angle of a triangle is 110^0...

An exterior angle of a triangle is `110^0` , and one of the interior opposite angles is `30^0dot` Find the other two angles of the triangle.

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Exterior angle of a triangle is equal to the sum of interior opposite angles of the triangle.
Hence, `30^0` + other interior angle = `110^0`
Other interior angle =` 80^0`
By the angle sum property of a triangle
` 30^0 + 80^0`+ third angle =` 180^0`
Third angle =` 70^0`
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