adjacent

Everyday

1. Adjacent means next to something or very near it. tree →
2. In maths, adjacent sides or angles share a side or a corner (vertex). tree →

In the lessons

In maths lessons, adjacent angles sit side by side and share an arm; adjacent sides of a rectangle meet at a corner (one length and one width). In everyday life, «adjacent rooms» or «the car park adjacent to the school» are next to each other. Phrases: adjacent to, adjacent angles, adjacent sides.

Examples

• Our house is adjacent to the park. tree →
• The library is adjacent to the main hall. tree →
• Adjacent angles on a straight line add up to 180°. tree →
• In a rectangle, two adjacent sides are a length and a width. tree →
• We stayed in adjacent rooms at the hotel. tree →
• Adjacent sides 3 cm and 4 cm give a rectangle with area 12 cm². tree →
• The field adjacent to the river often floods. tree →

Note

Adjective; used with «to». Say uh-JAY-sent; the d is almost silent. It is a formal word; in speech people say «next to». In maths, adjacent sides of a rectangle multiply to give the area; opposite sides are equal.