angles and line
Lines that form right angles
perpendicular lines
A radius of a circle is equal to half the length of the ? .
Diameter
What is the line joining the center of the polygon to any vertex?
radius
The measure of an angle formed by two chords is found by ?
1/2 the sum of the interior angles
What is the formula to find the area of a regular polygon
1/2 times apothem times perimeter
parallel lines
What is an angle formed by 2 radii?
Central Angle
What is the line drawn from the center of the polygon perpendicular to the side
apothem
A central angle is ? to its intercepted arc
equal
What is the ratio of the perimeters of two regular hexagons if the corresponding side are 3 inches and 9 inches?
1:3
Vertical angles are ? .
equal
What is an arc of a circle that is less than a semicircle?
Minor arc
what is the central angle of a regular polygon with 9 sides?
40
An inscribed angle is equal to ? .
half its intercepted arc
What is the ratio of the areas of two regular hexagons if the corresponding apothems are 3 inches and 9 inches?
1:9
Two angles whose sum is a right angle are said to be ?.
complementary
An angle inscribed in a minor arc is ? .
What is the relationship between an angle of a polygon and the central angle?
supplementary
an angle formed by a chord and a tangent
1/2 of an arc
What is the area of a square with an apothem of 5 inches
100 sq in
If the number of degrees in an angle is x, then its supplement is ? .
180 - x
The greater of two minor arcs in a circle will subtend the ? of two chords.
greater
What is the length of the apothem of a regular hexagon with a perimeter of 48 inches.
4 sqrt(3)
an angle formed by two tangents is found by ? .
1/2 the difference of the intercepted arcs
What is the area of a regular hexagon if the perimeter of the hexagon is 60 inches?
150 sqrt(3)