~Right Triangles & Trigonometry~
~Polygons~
~Triangle Congruency~
~Area of Polygons~
~Properties of Triangles~
100
The trigonometric ratio that represents the side opposite of an angle over the hypotenuse.
What is sine?
100
The polygon with 9 sides.
What is a Nonagon?
100
The sum of the measures of the interior angles of a triangle is 180°.
What is the Triangle Sum Theorem?
100
The sum of the measures of the interior angles of a convex n-gon is (n - 2) ∙ 180
What is the Polygon Interior Angles Theorem?
100
If a point is on the perpendicular bisector of a segment, then it is equidistant from the endpoints of the segment.
What is the Perpendicular Bisector Theorem?
200
The trigonometric ratio that represents the side adjacent to an angle over the hypotenuse.
What is cosine?
200
The polygon with 12 sides.
What is a Dodecagon?
200
If two angles of one triangle are congruent to two angles of another triangle, then the third angles are also congruent.
What is the Third Angle Theorem?
200
The sum of the measures of the exterior angles of a convex polygon, one angle at each vertex, is 360°.
What is the Polygon Exterior Angles Theorem?
200
If a point is on the bisector of an angle, then it is equidistant from the two sides of the angle.
What is the Angle Bisector Theorem?
300
c²=a²+b²
What is the pythagorean theorem?
300
A quadrilateral that is both a rhombus and a rectangle.
What is a square?
300
If three sides of one triangle are congruent to three sides of another triangle, then the two triangles are congruent.
What is the SSS Congruence Postulate?
300
The distance from the center to any side of the polygon.
What is an apothem?
300
Three or more lines that intersect in the same point.
What are concurrent lines?
400
Hypotenuse = √2 ∙ leg
What is the 45-45-90 Triangle Theorem?
400
If two sides of a triangle are congruent, then the angles opposite them are congruent.
What is the Base Angles Theorem?
400
A = ½aP
What is the Area of a Regular Polygon?
400
A segment of a triangle whose endpoints are a vertex and the midpoint of the opposite side.
What is a median?
500
Hypotenuse = 2 ∙ shorter leg Longer Leg = √3 ∙ shorter leg
What is the 30-60-90 Triangle Theorem?
500
A = ½h(Base1 + Base2)
What is the area of a trapezoid?
500
If the hypotenuse and a leg of a right triangle are congruent to the hypotenuse and leg of a second right triangle, then the triangles are congruent.
What is the HL Congruence Theorem?
500
A = ¼ · √3 · s²
What is the Area of an Equilateral Triangle?
500
A segment that connects two midpoints of a triangle.
What is a midsegment?
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