Always, Sometimes, Never

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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


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