What is the size of the angle marked `x°` in this diagram?
| `100°` | `110°` | `120°` | `170°` |
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Show Worked Solution
`text(From diagram, other interior angle)`
`= 180° – 120°`
`= 60°`
| `:. x` | `= 60 + 50` | |
| `= 110°` | `(text(exterior angle equals the)` `text{sum of interior opposites})` |
