Question

Solve for x
48° 73° X°

Answer 1

`x=59`

Explanation:

Angles in a triangle add to
`180^(\circ)`.

`\implies x=180-48-73=59`

Answer 2

x = 59

Explanation:

You want the measure of the angle marked x° in the triangle with the other two angles marked 48° and 73°.

Angle sum theorem

The angle sum theorem tells you the sum of angles in a triangle is 180°. This means ...

48° +x° +73° = 180°

x + 121 = 180 . . . . . . . . divide by °, collect terms

x = 59 . . . . . . . . . . subtract 121 from both sides

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