quadrilaterals & circles Flashcards
(TRUE OR FALSE)
A quadrilateral is a polygon with four sides and four vertices
True
(TRUE OR FALSE)
A quadrilateral is two-dimensional
True
The sum of two interior angles in a quadrilateral is _
360 degrees
(TRUE OR FALSE)
A circle is two-dimensional and perfectly round
True
locus of points at a fixed distance (radius) from a given points (center)
Circles
The fixed point in the middle of the circle from which all points on the circle are equidistant.
Center
The distance from the center of the circle to any point on its circumference
Radius
A line that intersects the circle at two distinct points.
Secant
A line segment that connects any two points on the circumference of the circle.
Chord
A line or line segment that touches the circle at exactly one point, known as the point of tangency.
Tangent
The distance across the circle passing through the center. It is twice the length of the radius.
Diameter
(TRUE OR FALSE)
All radii of the circle is NOT equal in length
False
Curved portion of a circle’s circumference. It is defined by two endpoints on the circle
Arc
The angle formed by two radii extending from the center of the circle to the endpoints of the arc.
Central angle
Greater than 180 degrees
Major arc
