One
An angle that is greater than a right angle but less than a straight angle.
obtuse angle
Two angles adjacent angles that add up to 180 degrees.
supplementary
Triangle having only two sides equal.
isosceles
Triangle that has no equal sides.
scalene
Name of the point that bisect a line segment into two equal parts.
midpoint
A limited portion of a line.
line segment
If all the angles of two polygons are equal and all the sides are proportional then the polygons are _________ to each other.
similar
A line joining the center with any point in the circle.
radius
Two polygons with all angles equal and all sides equal.
congruent
Equality between two ratios.
proportion
extremes
A plane figure bounded by straight lines.
polygon
complementary
A quadrilateral whose opposite sides are parallel.
parallelogram
A straight line which, however far it may be extended, has one and only one point in common with the circle.
tangent
Transformation where you flip both fractions.
inversion
An angle formed by two radii.
central angle
When two lines intersect, the two angles that are not adjacent are called ________________.
vertical
The line joining two nonconsecutive vertices in a polygon.
diagonal
right angles
Type of angles having the same vertex and a common side between them.
adjacent angles
When two lines form right angles with each other each line is said to be __________ to each other.
perpendicular
An angle whose vertex is on the circle and whose side are chords.
inscribed
The line drawn from any vertex of a triangle to the midpoint of the opposite side.
median
The area within a circle bounded by an arc of the circle and the chord.
segment