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Lesson 4 Leap Year Practice Understanding

Ready

For each of the geometric words below, write a definition that contains the essential attributes.

1.

Quadrilateral

2.

Parallelogram

3.

Rectangle

4.

Square

5.

Rhombus

6.

Trapezoid

Set

The underlying structure of each transformation is significant. Select the words or phrases from the word bank that fit with each transformation. Some words will be used multiple times and each transformation will have multiple words or phrases connected to it.

A. parallel

B. perpendicular

C. congruent segments

D. angle

E. bisector

F. same distance

G. concentric circles

H. equidistant

I. same direction

J. changes orientation

K. keeps orientation

L. same size and shape

7.

Rotation

8.

Translation

9.

Reflection

On the grids provided, draw in the desired components related to the transformation.

10.

  • Show the lines between corresponding points.

  • Draw the line of reflection.

An acute triangle with vertices labeled A, B,C and an acute triangle with vertices labeled A', B', C'.

11.

  1. Draw the concentric circles through corresponding points with center at point .

  2. Estimate the angle of rotation.

An acute triangle with vertices labeled A, B,C and an acute triangle with vertices labeled A', B', C'. Point D is not located on either triangle and is located at below both triangles.

12.

Draw the parallel congruent segments between corresponding vertices.

An acute triangle with vertices labeled A, B,C and an acute triangle with vertices labeled A', B', C'. Point D is not located on either triangle and is located at below both triangles.

Go

Perform each transformation given the pre-image and description or rule.

13.

Translate , .

A coordinate plane with x- and y- axis of 1-unit increments with a triangle with vertices: A(-6,2), B(-5,4), C(-4,1). x–5–5–5555y–5–5–5555000

14.

Rotate counterclockwise around the point .

A coordinate plane with x- and y- axis of 1-unit increments with a triangle with vertices: X(1,1), Z(0,0), Y(-1,3). x–5–5–5555y–5–5–5555000

15.

Reflect over the line .

A coordinate plane with x- and y- axis of 1-unit increments with a triangle with vertices: P(1,-3), R(1,1), Q(-3,0). The line y=x-3 is drawn. x555y–5–5–5555000

16.

Translate , .

A coordinate plane with x- and y- axis of 1-unit increments with a triangle with vertices: D(5,3), F(6,1), E(7,2). x–5–5–5555y–5–5–5555000