12/16/2022 Sub Assignment

Front

What is the formula for calculating the perimeter of a triangle?

Back

The perimeter of a triangle is the sum of the lengths of its three sides: P = a + b + c.

Front

What does a translation of (x, y) -> (x-2, y+7) represent?

Back

It represents a translation 2 units to the left and 7 units up.

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 to rotate a figure 90 degrees clockwise around the origin?

Back

It means to turn the figure 90 degrees in the direction of the clock hands around the origin point (0,0).

Front

How do you find the area of a triangle?

Back

The area of a triangle can be found using the formula: Area = 1/2 * base * height.

Front

What is the difference between a translation and a rotation?

Back

A translation moves a figure without changing its orientation, while a rotation turns a figure around a point.

Front

What is the effect of reflecting a point across the x-axis?

Back

Reflecting a point (x, y) across the x-axis results in the point (x, -y).

Front

What is the result of rotating a point (3, 4) 90 degrees counterclockwise around the origin?

Back

The result is the point (-4, 3).

Front

What is the definition of a transformation in geometry?

Back

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

Front

What does it mean to translate a figure up?

Back

To translate a figure up means to move it vertically in the positive y-direction.