Unit 1 Midterm Review

Front

If m∠1 = 30°, what is m∠3?

Back

m∠3 = 30°

Front

Which set of angles can form a triangle? 1) 45°, 65°, 70° 2) 150°, 110°, 100° 3) 50°, 50°, 50° 4) 90°, 90°, 90°

Back

Set 1: 45°, 65°, 70° can form a triangle.

Front

What is the sequence of transformations: Translate up and then rotate 90 degrees counterclockwise around the origin?

Back

This describes the transformation sequence.

Front

What are congruent transformations?

Back

Congruent transformations include rotations, translations, and reflections.

Front

If you translate point X (1, 4) 3 units to the left and 9 units down, where is X'?

Back

X' = (-2, -5)

Front

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

Back

The sum of the interior angles of a triangle is 180°.

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 is a rotation in geometry?

Back

A rotation is a transformation that turns a figure around a fixed point at a certain angle.

Front

What is a translation in geometry?

Back

A translation is a transformation that moves every point of a figure the same distance in the same direction.

Front

What is the difference between congruent and similar figures?

Back

Congruent figures are identical in shape and size; similar figures have the same shape but different sizes.