IM 8.1.7 Lesson: No Bending or Stretching

For each question, the unit is represented by the large tick marks with whole numbers.

Find the length of this segment to the nearest  of a unit.

Find the length of this segment to the nearest 0.1 of a unit.

Estimate the length of this segment to the nearest  of a unit.

Estimate the length to the nearest 0.1 of a unit.

Translate Polygon A so point P goes to point P'. In the image, write in the length of each side, in grid units, next to the side using the draw tool.

Rotate Triangle B 90 degrees clockwise using R as the center of rotation. In the image, write the measure of each angle in its interior using the draw tool.

Reflect Pentagon C across l line . In the image, write the length of each side and the measure of each interior angle, in grid units, next to the corresponding side or angle.

Here is a grid showing triangle ABC and two other triangles. You can use a rigid transformation to take triangle ABC to one of the other triangles. Which one? Explain how you know.

Describe a rigid transformation that takes to the triangle you selected.

A square is made up of an L-shaped region and three transformations of the region.

If the perimeter of the square is 40 units, what is the perimeter of each L-shaped region?