# Lesson 3 Specific Side Lengths

Let’s find and draw shapes with specific side lengths.

## Warm-up Which One Doesn’t Belong: Different Shapes

Which one doesn’t belong?

## Activity 1 Measure Twice, Draw Once

## Problem 1

Diego drew a shape that has fewer than 5 sides. Two sides are 3 centimeters long. Circle shapes that could be Diego’s shape.

## Problem 2

Tyler drew a shape that has 4 sides. Each side is 2 inches long.

Circle shapes that could be Tyler’s shape.

Draw another shape that could be Tyler’s shape.

Priya drew a shape that has more sides than Tyler’s shape. Only one side of her shape is 2 inches long. Draw two shapes that could be Priya’s shape.

## Activity 2 Build a Shape

## Problem 1

Choose your own attributes. Circle an attribute from each row.

sides

corners

side length

1 side is 2 in.

2 sides are 2 in.

2 sides are 3 in.

4 sides are 2 in.

square corners

all square corners

Draw and name a shape with the attributes you chose. If you cannot draw the shape, explain why.

Name:

Shape:

## Problem 2

Choose your own attributes. Circle an attribute from each row.

sides

corners

side length

1 side is 2 in.

2 sides are 2 in.

2 sides are 3 in.

4 sides are 2 in.

square corners

all square corners

Draw and name a shape with the attributes you chose. If you cannot draw the shape, explain why.

Name:

Shape:

## Problem 3

Choose your own attributes. Circle an attribute from each row.

sides

corners

side length

1 side is 2 in.

2 sides are 2 in.

2 sides are 3 in.

4 sides are 2 in.

square corners

all square corners

Draw and name a shape with the attributes you chose. If you cannot draw the shape, explain why.

Name:

Shape:

## Problem 4

Cover your attribute table and trade papers with your partner. Guess which attributes they used to draw their shape.

## Problem 5

If you have time… Are there any attributes that are impossible to put together to make a shape? Show or explain.

## Practice Problem

## Problem 1

Draw a quadrilateral that has 3 sides that are 2 inches long.

Draw a different quadrilateral that has 3 sides that are 2 inches long.