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The sum of two angles of a triangle i...

The sum of two angles of a triangle is equal to its third angle. Determine the measure of the third angle.

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We know that , in any `triangle `ABC, according to the angle sum property of the `triangle`, we get,`/_A +/_B+/_C = 180^@ `
` /_C + /_C=180^@ `(Using 1)
` 2/_C = 180^@`
`/_C = (180^@)/2`
`/_C = 90^@`
Therefore, the measure of the third angle is`/_C = 90^@`
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