If two of the angles of a triangle are `70^(@)` and `80^(@)`, then the third angle of the triangle is _____.

Answer

`30^(@)`

Explanation

Sum of angles of a triangle is equal to `180^(@)`.
Sum of the given two angles
`=70^(@)+80^(@)=150^(@)`
`therefore` Third angle = `180^(@)-150^(@)=30^(@)`