Question

What is the value of x? Triangle angles of 105 and 55

Answer 1

`x=20\°`

Explanation:

Given:

Angles of triangle: 105° and 55°

`x` is the missing angle of the triangle.

We know that sum of all three angles of a triangle =180°

∴
`x+105\° +55\° =180\°`

`x+160\° =180\°`

Subtracting 160° from both sides.

`x+160\°-160\° =180\°-160\°`

∴
`x=20\°`