Congruent Triangles

Front

What are congruent triangles?

Back

Triangles that have the same size and shape, meaning their corresponding sides and angles are equal.

Tags

CCSS.8.G.A.2

Front

What does CPCTC stand for?

Back

CPCTC stands for 'Corresponding Parts of Congruent Triangles are Congruent', a principle used to prove that corresponding angles and sides of congruent triangles are equal.

Tags

CCSS.HSG.SRT.B.5

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length and the angles opposite those sides are also equal.

Tags

CCSS.4.G.A.2

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths and all angles of different measures.

Tags

CCSS.4.G.A.2

Front

What is an equilateral triangle?

Back

A triangle with all three sides of equal length and all three angles measuring 60 degrees.

Tags

CCSS.4.G.A.2

Front

What is an obtuse triangle?

Back

A triangle that has one angle measuring more than 90 degrees.

Tags

CCSS.4.G.A.2

Front

What is an acute triangle?

Back

A triangle where all three angles are less than 90 degrees.

Tags

CCSS.4.G.A.2

Front

How do you classify triangles by their sides?

Back

Triangles can be classified as isosceles, scalene, or equilateral based on the lengths of their sides.

Tags

CCSS.4.G.A.2

Front

How do you classify triangles by their angles?

Back

Triangles can be classified as acute, right, or obtuse based on the measures of their angles.

Tags

CCSS.4.G.A.2

Front

What is the formula to find the area of a triangle?

Back

Tags

CCSS.6.G.A.1