Always, Sometimes, Never
A line perpendicularly bisecting a chord is the diameter of the circle
N
A secant line of a circle is perpendicular to the radius draw to the point of contact
N
A tangent line of a circle contains a diameter of the circle
N
AB intersects CD at X. If CX = 2XD, then A is equidistant to C and D.
N
Equilateral triangles are obtuse
N
If the hypotenuse of a right triangle is twice as long as one of its legs, its a 45-45-90
N
If the ratio of the measures of corresponding sides of two polygons is 3/7, the ratio of their perimeters is 9/49
N
If we enlarge a polygon by doubling all its sides, its area will also double
N
In a regular polygon, the apothem is congruent to the radius
N
Kites are trapezoids
N
The apothem of a regular polygon is congruent to its radius
N
The contrapositive of a false statement is true
N
The cosine o an angle and the sine of an acute angle add up to 1
N
The sum of exterior angles of a pentagon is larger than the sum of exterior angles of a triangle
N
The volume of a cylinder is pi times more than the volume of a prism with the same base area and height
N
Trapezoids are parallelograms
N
Trapezoids are squares
N
Two chords of different lengths are equidistant from the center of a circle
N
Two congruent, supplementary angles are acute
N
When two lines intersect, 2 straight angles are formed
N
When two lines intersect, 4 acute angles are formed
N
A quadrilateral inscribed in a circle is a rectangle.
S
A scalene triangle is acute
S
A secant line of a circle goes through the diameter of the circle
S
Alternate interior angles are congruent
S
If A, B, C are collinear, then AB + BC = AC.
S
If a diagonal of a quadrilateral bisects the angles it intersects, then the quadrilateral is a rhombus.
S
If a quadrilateral has a pair of congruent angles and a pair of parallel opposite sides, then it is an isosceles trapezoid
S
If a radius bis. a chord, it is perpendicular to the chord
S
If a sector is divided into a segment and a triangle by a chord, then the area of the segment is smaller than the area of the triangle
S
If the diagonals of a quadrilateral are congruent, then the quadrilateral is a parallelogram.
S
If the diagonals of a quadrilateral are congruent, then the quadrilateral is a rectangle.
S
If two arcs have the same measure, they are congruent
S
If two corresponding pairs angles of two triangles are congruent, the triangles are congruent.
S
If two sides of a triangle are proportional to two sides of another triangle, the triangles are similar.
S
In a regular polygon, the radius is congruent to the side length
S
Interior angles on the same side of a transversal are congruent
S
Rectangles are squares
S
The converse of a true statement is false
S
The inverse of a true statement is true
S
The lateral area of a cone is smaller than a lateral area of a cylinder with the same radius and height
S
The perimeter of a pentagon is divisible by five
S
The sine of an angle is larger than the cosine of an angle
S
The tangent of an angle is larger than the cosine of an angle
S
Two different circles share two common external tangents
S
Two different circles share two common internal tangents
S
A parallelogram inscribed in a circle is a rectangle
A
A tangent line of a circle is perpendicular to the radious drawn to the point of contact
A
An isosceles triangles has two congruent sides and angles
A
CSSTP
A
Corresponding angles of similar triangles are proportional
A
If A and B are equidistant from the endpts of sgmt CD, then a point E on line AB is also equidistant from the endpts of CD
A
If A, B, C are collinear, then the slope of AB is equal to the slope of BC.
A
If a prism and a pyramid have the same volume and the same base area, then the prism is taller.
A
If a radius is perpendicular to a chord, it bis. the chord
A
If an acute triangle is inscribed in a circle, the arcs formed by the vertices of the triangle all measure less than 180 degrees
A
If the diagonals of a quadrilateral divides each angle into 2 45 degree angles, then the quadrilateral is a square
A
If the ratio of the measures of corresponding sides of two polygons is 3/7, the ratio of their areas is 9/49.
A
If the ratio of the side lengths of two cubes is 3/7, the ratio of their surface areas is 9/49.
A
If two angles are supp to congruent angles, they are congruent
A
If two angles of a triangle are congruent then it is isosceles.
A
If two arcs are congruent, they have the same measure
A
If two central angles in the same circle have the same measure, the arcs they intercept will have the same length
A
If two chord tangent angles intercept congruent arcs, they are congruent
A
If two circles have the same radii, they are congruent.
A
If two isosceles triangles have congruent vertex angles they are similar.
A
If two triangles have the same area and height, they have the same base
A
In congruent triangles, pairs of corresponding sides are proportional
A
Parallelograms are quads.
A
Rhombuses are kites
A
Squares are rectangles
A
The area of a triangle is half the area of a rhombus with the same base and height
A
The lateral area of a prism is smaller than its total areas
A
The median of a trapezoid is congruent to the base of a parallelogram. If the trapezoid and the parallelogram have the same height, they have the same area.
A
The sgmt connecting the midpoints of two sides of a triangle is half as long as the third side
A
The sum of interior angles of a pentagon is larger than the sum of interior angles of a triangle.
A
The surface area of a sphere is larger than the area of a circle with the same radius
A
The volume of a prism is 1/3 the volume of a prism with the same base and height
A
Triangle ABC is rotated 50 degrees clockwise about point A, shifted 6 units to the right, and then flipped horizontally to form a new triangle PQR. Triangles ABC and PQR are congruent.
A
Two right triangles are similar if the legs of one are proportional to the legs of the other.
A
