# Angles & Straight Lines Math Review

math tutorials > geometry of angles & straight lines

## Angles on a straight line, at a point & vertically opposite angles

**Angles on a straight line**

The sum of the angles on a straight line is 180º

**Angles at a point**

The sum of the angles formed at a point is 360º

**Vertically opposite angles**

When 2 straight lines intersect, vertically opposite angles are formed.
These angles are equal.

## Geometry problems for you to try.

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*Solutions *

x = 52º

y = 128º

z = 25º

t = 148º