Geometry Semester 1 Review

Front

What is a right triangle?

Back

A right triangle is a type of triangle that has one angle measuring 90 degrees, known as the right angle. The side opposite the right angle is called the hypotenuse.

Front

What is the sequence of transformations to move Triangle ABC to Triangle A''B''C''?

Back

The sequence is a rotation of 90 degrees, followed by a reflection over the x-axis.

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal in measure.

Front

What does ASA stand for in triangle congruence?

Back

ASA stands for Angle-Side-Angle, a criterion for triangle congruence where two angles and the included side of one triangle are equal to two angles and the included side of another triangle.

Front

What is CPCTC?

Back

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

Front

What is the midpoint of a line segment?

Back

The midpoint of a line segment is the point that divides the segment into two equal parts. It can be found using the formula: M = (x1 + x2)/2, (y1 + y2)/2.

Front

What is the equation for finding the midpoint M of a segment with endpoints (x1, y1) and (x2, y2)?

Back

M = ((x1 + x2)/2, (y1 + y2)/2).

Front

What is an obtuse triangle?

Back

An obtuse triangle is a triangle that has one angle measuring more than 90 degrees.

Front

What is an acute triangle?

Back

An acute triangle is a triangle where all three angles are less than 90 degrees.

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way to produce a new shape, such as translation, rotation, reflection, or dilation.