Match the words on the left with their definitions on the right. The tiles in the right-hand column are sortable. ANSWERS
- circumference (n.)
- subtract (v.)
- vertex (n.)
- symmetrical (adj.)
- variable (n.)
- congruent (adj.)
- protractor (n.)
- round sth up (pv.)
- innumerate (adj.)
- tangent (n.)
- having two halves, parts or sides that are the same in size and shape
- a device used for measuring and drawing angles
- take a number or an amount from a larger number or amount
- unable to do simple calculations or understand basic mathematics
- the enclosing boundary of a curved geometric figure, especially a circle
- a straight line that touches but does not cut into a curve
- having the same size and shape
- a mathematical quantity which can represent several different amounts
- increase a number to the nearest whole or simple number
- a point where two lines meet to form an angle