Review for 8R Midterm

Front

Identify the transformation from ABC to A'B'C'.

Back

Reflection across the y-axis.

Front

Solve for x: 2x + 10 = 90

Back

x = 40.

Front

What are the new coordinates of point C if it is translated 6 units to right and 1 down from (1,3)?

Back

(7,2).

Front

Solve for x: 3x - 5 = 7

Back

x = 4.

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is a reflection in geometry?

Back

A transformation that flips a figure over a line.

Front

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

Back

180°.

Front

What is a 90° clockwise rotation?

Back

A transformation that turns a figure 90 degrees to the right.

Front

What is the distance formula?

Back

Distance = √((x2 - x1)² + (y2 - y1)²).