Circle Clipart
A circle constitutes all points in a plane equidistant from a center point. The distance between any point on the circle and its center remains constant, referred to as the radius (r). Circles represent fundamental geometric shapes owing to their symmetry and occurrence across nature.
Parts of a Circle
- Diameter – A line segment passing through the center with endpoints on the circle, measuring twice the radius length.
- Circumference – The enclosing boundary length around the circle.
- Arc – A curved segment forming part of the circle perimeter.
- Chord – A line segment connecting two points on the circle.
- Sector – Area bounded by an arc and two radii.
Formulas for Circles
- Area = πr2 – Pi times the radius squared gives the area
- Circumference = 2πr = πd – Diameter times Pi or twice Pi times radius define the circumference
Other relationships like arc length and sector area also integrate the circle constant Pi in their derivation.
Circle Theorems
A rich tradition exists in geometry dealing with tangent lines to circles and intersecting chords properties:
- Tangents from an external point are equal length
- Angle between tangent and radius is 90 degrees
- The angle subtended by an arc at the centre is twice the angle subtended at any point on the remaining part of the circumference
Drawing Circles
Compasses provide the simplest circle construction method – fixing one arm point whilst moving the other arm connected to pencil in a 360 degree loop while maintaining fixed radius length. Computer graphics simulate such geometric constructions today.
Uses of Circles
The ubiquitous circular wheel remains integral to mechanisms enabling motion. Round dial plates serve best for clocks tracking diurnal motions. Optical instruments like telescopes, microscopes, cameras and human eye anatomy harness curved lens powers. Circles appear through natural phenomena – planetary orbits, spider webs and cross sections of trees all integrate radial symmetry.
Circle Symbols
Circle importance ranges from mathematical concepts like Pi, infinity loops in statistics, Zen enso in Buddhism to gold alloy karat purity notations. Circled numbers specify squad team players and red prohibition slashes on signage.
History of Circle Geometry
Ancient Egyptian Rhomphaia drawings constituted early constructions to calculate areas. Archimedes developed the Pi constant determining circular dimensions. Hindu sulbasutras formulated geometrical altar constructions involving squares, rectangles and circles. Great mathematicians like Descartes and Newton built further on Euclidean foundations applying calculus insights interrelating curves, tangents and areas.
Circle Art and Design
Circles feature prominently in architecture like the Pantheon dome, art photography playing with round mandala forms while expansive land circles as large as cities appear mysteriously imprinted on Peruvian desert plains interesting archeologists to this day.
Circle Clip Art Variety
Myriad styles serve decorative needs:
- Teacher red grading ink marks
- Infographic stats expressed as percent pie charts
- Floral wreaths and wedding ring bands
- Sport ball outlines for soccer or baseballs
- Planet Saturn rings framing space landscapes
- Fancy frame corners and circular borders
Circles meet endless graphic needs across publishing contexts due to innate symmetry and familiarity lending adaptable aesthetics. Memorably, round Oscar statue silhouettes signify cinema excellence and accomplishment.
In this page clipartix present 77 circle clipart images free for designing activities. Lets download Circle Clipart that you want to use for works or personal uses.
