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1The continuous line forming the boundary of a closed geometrical figure.‘the perimeter of a rectangle’
circumference, outside, outer edgeView synonyms
- ‘You calculate the perimeter by multiplying the diameter by pi.’
- ‘He compares the areas of figures with equal perimeters and volumes of solids with equal surface areas, proving a result due to Zenodorus that the sphere has greater volume than any regular solid with equal surface area.’
- ‘It is easier to find a pentagon that circumscribes the same circle as the given square and has the same perimeter.’
- ‘Then these rings also have the additional property that both the inner perimeters are equal and the outer perimeters are equal.’
- ‘The perimeter of the inner polygon is shorter than the circumference of the circle, while that of the outer polygon is longer.’
- ‘The number four, for example, would be the ratio of the perimeter of a square to one of its sides and also the ratio of the area of a square to the area of a square whose side is half the original.’
- ‘We found that the area, perimeter, length, and width of the lamina were highly correlated, suggesting the existence of a common genetic control.’
- ‘The square and the cube are abstract, they're mathematical forms, measurements, perimeters, boundaries, mental constructs, and as such, are emotionally unknowable.’
- ‘Finally, if the rope is short enough (less than half the perimeter of the barn), the problem simplifies immensely.’
- ‘The most interesting results show, with a very ingenious proof, that an equilateral triangle has a greater area than any isosceles or scalene triangle with the same perimeter.’
- ‘Zenodorus studied the area of a figure with a fixed perimeter and the volume of a solid figure with fixed surface.’
- ‘Answer: the arc lengths and, therefore, the perimeters are equal.’
- 1.1 The outermost parts or boundary of an area or object.‘the perimeter of the garden’as modifier ‘a perimeter fence’
boundary, border, frontier, limits, outer limits, bounds, confines, edge, margin, fringe, fringes, periphery, borderline, vergeView synonyms
- ‘About 30 minutes after they had started out, they arrived just beyond the outer perimeter of the lab area.’
- ‘Sub-zero temperatures at the complex left the narrow perimeter roads covered in sheet ice, with virtually no grip for the opening cars.’
- ‘There were wooded areas beyond the perimeter and alongside one of the streams, but the course itself was mostly just a large empty field.’
- ‘We could walk the entire perimeter of the island in less than an hour.’
- ‘A two-kilometre perimeter fence for the broader area is also planned.’
- ‘Surrounding the entire perimeter of the fence was a long line of barbed wire, spiky and foreboding.’
- ‘After dark I drove the perimeter road and saw more jackals and foxes.’
- ‘He said it was the landlord of the estate who had replaced the perimeter fence around the whole of the industrial area.’
- ‘There are lots of grasshoppers around here, but my hens patrol the garden perimeter fence and really reduce the numbers of insects in the garden.’
- ‘For the less energetic, there is a walk around the perimeter racecourse road beginning at 2 pm.’
- ‘I drove around our perimeter road one rainy night and saw lots of little rodents of some type running around.’
- ‘One is a low-voltage electric fence around the perimeter of your garden.’
- ‘The only sure way of deterring them is to have an electric fence built around the perimeter of the garden.’
- ‘The court heard how she made off with thousands of pounds worth of holidaymakers' property after scaling the perimeter fence and entering the rooms.’
- ‘They ran to a perimeter concrete fence and jumped over.’
- ‘Burn some sage, and walk the inner perimeter of your room or home if you can.’
- ‘A tough protein envelope surrounds the inner perimeter of the cell.’
- ‘Signs are being placed around airport perimeters urging them to join the cause.’
- ‘Repeat this until the entire perimeter of the room has been sanded.’
- ‘Most styles can be adapted to meet any pool codes in your area, and provide a safe perimeter fence around your pool.’
- 1.2 An area away from the basket, beyond the reach of the defensive team.‘he was very patient in working the ball around the perimeter’
- ‘More than anything, the team needs his defense on the perimeter against more athletic swingmen.’
- ‘That is to say, whenever the ball is on the perimeter, 3 defensive players are between the player with the ball and basket.’
- ‘He's also beginning to get a feel for the right time to squeeze off a tough shot and when to flick the ball out to the perimeter and restart.’
- ‘With reduced defensive contact on the perimeter, point guards can do their jobs with less harassment.’
- ‘The low post has two options as the ball moves around the perimeter.’
2An instrument for measuring the extent and characteristics of a person's field of vision.
Late Middle English: via Latin from Greek perimetros, based on peri- ‘around’ + metron ‘measure’.
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