Question

1. if a triangle with side lengths of 3, 4, and 5 is rotated 180 degrees, what happens to the side lengths?

a. they reverse order.
b. they remain the same.
c. they double.
d. they halve.

1. how do you confirm that two figures are congruent?

a. by checking their areas.
b. by checking their positions on the plane.
c. by comparing their side lengths and angles.
d. by comparing their colors.

1. what type of transformation involves flipping a figure over a line of symmetry?

a. rotation
b. translation
c. reflection
d. dilation

Explanation:

1. Rotations are rigid transformations that preserve the size and shape of a figure, so side lengths do not change.
2. Congruent figures have identical corresponding side lengths and angles, which is the definitive check for congruence.
3. A reflection is defined as flipping a figure over a fixed line of symmetry, matching the described transformation.

Answer:

1. b. They remain the same.
2. c. By comparing their side lengths and angles.
3. c. Reflection