Quick Answer: What Does Cpctc Stand For?

What is the Cpctc Theorem?

CPCTC reminds us that, if two triangles are congruent, then every corresponding part of one triangle is congruent to the other.

The converse of this, of course, is that if every corresponding part of two triangles are congruent, then the triangles are congruent.

The HL Theorem helps you prove that..

What is SAS postulate?

Side-Angle-Side If we can show that two sides and the included angle of one triangle are congruent to two sides and the included angle in a second triangle, then the two triangles are congruent. This is called the Side Angle Side Postulate or SAS.

What is the difference between congruent and corresponding?

Congruent figures are identical in size, shape and measure. The corresponding sides between two triangles are sides in the same relative position. Two figures are similar if they have the same shape, but not necessarily the same size.

What is Cpctc and example?

It means that if two trangles are known to be congruent , then all corresponding angles/sides are also congruent. As an example, if 2 triangles are congruent by SSS, then we also know that the angles of 2 triangles are congruent.

What does Cpcte stand for?

Corresponding Parts of Congruent Triangles are EqualDefinition. CPCTE. Corresponding Parts of Congruent Triangles are Equal.

What does a parallelogram mean?

In Euclidean geometry, a parallelogram is a simple (non-self-intersecting) quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.

What is Cpctc for similar triangles?

CASTC is simply an acronym that stands for ‘Corresponding angles of similar triangles are congruent. ‘ You often use CASTC in a proof immediately after proving triangles similar (in precisely the same way that you use CPCTC after proving triangles congruent).

When can you use Cpctc in a proof?

CPCTC is commonly used at or near the end of a proof which asks the student to show that two angles or two sides are congruent. It means that once two triangles are proven to be congruent, then the three pairs of sides that correspond must be congruent and the three pairs of angles that correspond must be congruent.

Is AAS and ASA the same?

A.S.A. refers to an angle, then side, then an angle in anticlockwise or clockwise direction; while A.A.S. refers to an angle, then angle, then a side in anticlockwise or clockwise direction. The former means that the side and two angles related to that side.

How do you know if it’s AAS or ASA?

ASA stands for “Angle, Side, Angle”, while AAS means “Angle, Angle, Side”. Two figures are congruent if they are of the same shape and size. … ASA refers to any two angles and the included side, whereas AAS refers to the two corresponding angles and the non-included side.


SAS (side-angle-side) Two sides and the angle between them are congruent. ASA (angle-side-angle) Two angles and the side between them are congruent. AAS (angle-angle-side)

How can you tell the difference between SAS ASA and SSA AAS?

There are five ways to find if two triangles are congruent: SSS, SAS, ASA, AAS and HL.SSS (side, side, side) SSS stands for “side, side, side” and means that we have two triangles with all three sides equal. … SAS (side, angle, side) … ASA (angle, side, angle) … AAS (angle, angle, side) … HL (hypotenuse, leg)

How do you prove parallel lines?

The first is if the corresponding angles, the angles that are on the same corner at each intersection, are equal, then the lines are parallel. The second is if the alternate interior angles, the angles that are on opposite sides of the transversal and inside the parallel lines, are equal, then the lines are parallel.

What does Cpoctac mean?

congruent trianglesThe notion that corresponding parts of congruent triangles are congruent will be used so often that it will be abbreviated CPOCTAC. It will play a crucial role in proving the congruence of line segments and angles.