Geometry Semester 1 Review

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length, which also means at least two angles are congruent.

Front

How can you determine if a triangle is isosceles?

Back

You can determine if a triangle is isosceles by checking if at least two of its angles are congruent.

Front

What is the slope of a line that is perpendicular to a line with a slope of 2?

Back

The slope of a line that is perpendicular to a line with a slope of 2 is -1/2, since the slopes of perpendicular lines are negative reciprocals.

Front

What is the equation of a line in slope-intercept form?

Back

Front

How do you find the image of a point after a translation?

Back

To find the image of a point after a translation, you add the translation values to the x and y coordinates of the original point.

Front

What is the distance formula for two points (x1, y1) and (x2, y2)?

Back

Front

What is a reflection in geometry?

Back

A reflection is a transformation that flips a figure over a line, creating a mirror image.

Front

What does it mean for a figure to be congruent?

Back

Two figures are congruent if they have the same shape and size, meaning all corresponding sides and angles are equal.

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a figure around a fixed point, called the center of rotation, by a certain angle.

Front

What is the definition of a transformation in geometry?

Back

A transformation is an operation that moves or changes a geometric figure in some way, such as translation, rotation, reflection, or dilation.