parts of a circle

Question 1

Circumference

Answer 1

-obvod kruhu, the length of the boundary, the circles perimeter

Question 2

radius

Answer 2

• a segment with one endpoint at the centre and the other endpoint on the circle

Question 3

chord

Answer 3

• tetiva, a segment that joins two points on the circle, from one point on the circumference to another

Question 4

diameter

Answer 4

• a chord passing through the centre of the circle

Question 5

arc

Answer 5

• oblúk, a portion of the circumference

Question 6

sector

Answer 6

• výsek, a region formed by two radii and an arc of a circle

Question 7

tangent

Answer 7

• dotyčnica, a straight line that intersects the circle in exactly one point

Question 8

secant

Answer 8

• sečnica, a chord extended beyond the circumference on one side

Question 9

congruent circles

Answer 9

• zhodné kružnice, circles that have equal radii

Question 10

concentric circles

Answer 10

• sústredné kružnice, circles with the same centre

Question 11

center

Answer 11

• the middle point that is equidistant from all points on the circumference, usually it is indicated by a dot and a label

Question 12

segment in a circle

Answer 12

• odsek kruhu, the area of the circle between a chord and the circumference. The smaller segment is called minor segment and bigger segment is called major segment. Basically the area inside a circle inclosed by a chord