Topic 6: Congruent, Similar

1) I can tell what will change and what will stay the same when you translate, reflect, rotate, or dilate a shape.

What doubles and what doesn't when you dilate by a scale factor of 2?

Standard: 8.G.1

2) I can tell two shapes are congruent (or similar) by describing the steps of translations, reflections, rotations, (and dilations) that will go from one shape to the other.

Standards: 8.G.2 & 4

3) I can tell what the coordinates of key points on a shape will be if the shape is going to be translated, reflected, rotated, or dilated.

Given the points A: (1,2), B: (3, -4), and C: (-1, 0),

what will be the coordinates of ΔABC

after translating up 3 units and left 2 units?

Standard: 8.G.3

4) I can use properties to find supplementary and congruent pairs of angles (without measuring them) in a wide variety of situations.

Standard: 8.G.5

5) I can show (without measuring) that the three angles of any triangle total a straight angle.

Standard: 8.G.5

6) I can show (without measuring) that the sum of two angles of any triangle equal the exterior angle of the third.

Standard: 8.G.5

7) I can explain why two triangles are similar if they have two matching angle pairs.

Standard: 8.G.5