What is the value of $$y$$ if two angles are supplementary and one angle is $$110^\text{°}$$ ?

$$70^\text{°}$$ (since $$180^\text{°} - 110^\text{°} = 70^\text{°}$$ ).

What is the value of $$x$$ if two angles are complementary and one angle is $$54^\text{°}$$ ?

$$36^\text{°}$$ (since $$90^\text{°} - 54^\text{°} = 36^\text{°}$$ ).

What is the relationship between the angles in a triangle?

The sum of the interior angles in a triangle is always $$180^\text{°}$$ .

What is the definition of a transversal?

A transversal is a line that intersects two or more lines at different points. It creates various angles, including corresponding, alternate interior, and alternate exterior angles.

What is the value of $$x$$ if two angles are equal and one angle is $$38$$ ?

$$38$$ (since both angles are equal).

What is the definition of congruence in geometry?

Congruence in geometry means that two figures have the same shape and size, which can be shown through rigid transformations such as translation, rotation, and reflection.

What is the definition of supplementary angles?

Supplementary angles are two angles whose measures add up to $$180^\text{°}$$ .

What is the definition of complementary angles?

Complementary angles are two angles whose measures add up to $$90^\text{°}$$ .

What is the value of $$y$$ if one angle is $$125^\text{°}$$ and the other is supplementary?

$$55^\text{°}$$ (since $$180^\text{°} - 125^\text{°} = 55^\text{°}$$ ).

What is the definition of a triangle's exterior angle?

An exterior angle of a triangle is equal to the sum of the two opposite interior angles.

Congruent Figures Flashcards

Student preview

15 questions

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1.

FLASHCARD QUESTION

Front

What are congruent figures?

Back

Congruent figures are shapes that are identical in form and size. They can be superimposed on each other, meaning all corresponding sides and angles are equal.

Tags

CCSS.8.G.A.2

2.

FLASHCARD QUESTION

Front

What is the SAS Postulate?

Back

The SAS (Side-Angle-Side) Postulate states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the two triangles are congruent.

Tags

CCSS.HSG.SRT.B.5

3.

FLASHCARD QUESTION

Front

Back

Tags

CCSS.7.G.B.5

4.

FLASHCARD QUESTION

Front

Back

Tags

CCSS.7.G.B.5

5.

FLASHCARD QUESTION

Front

What is the definition of corresponding angles?

Back

Corresponding angles are pairs of angles that are in the same position on different parallel lines cut by a transversal. If the lines are parallel, corresponding angles are congruent.

Tags

CCSS.8.G.A.5

6.

FLASHCARD QUESTION

Front

What is the definition of alternate interior angles?

Back

Alternate interior angles are pairs of angles that lie between two parallel lines on opposite sides of a transversal. If the lines are parallel, these angles are congruent.

Tags

CCSS.8.G.A.5

7.

FLASHCARD QUESTION

Front

What is the definition of vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always congruent.

Tags

CCSS.7.G.B.5

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