Geo Midterm Review (Chapters 4 & 6)

Front

What is a trapezoid?

Back

A trapezoid is a four-sided figure (quadrilateral) with at least one pair of parallel sides.

Front

What is the sum of the interior angles of a trapezoid?

Back

The sum of the interior angles of a trapezoid is 360 degrees.

Front

How do you find the missing angle in a trapezoid?

Back

To find the missing angle, use the property that the sum of the angles in a trapezoid is 360 degrees.

Front

What does ∠A ≅ ∠M mean?

Back

It means angle A is congruent to angle M, indicating they have the same measure.

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 equal to two sides and the included angle of another triangle, then the triangles are congruent.

Front

What is the value of y if y + 3 = 18?

Back

y = 15.

Front

How do you determine if two triangles are congruent?

Back

Two triangles are congruent if they have the same size and shape, which can be proven using postulates like SSS, SAS, ASA, or AAS.

Front

What is the definition of congruent angles?

Back

Congruent angles are angles that have the same measure.

Front

What is the relationship between the angles in a trapezoid?

Back

In a trapezoid, the angles on the same side of a leg are supplementary, meaning they add up to 180 degrees.

Front

What is the formula for finding the area of a trapezoid?

Back

Area = (1/2) * (Base1 + Base2) * Height.