Exploring Area and Perimeter of Irregular Shapes

What is the first step in finding the perimeter of an irregular shape?

• Add up all the sides

• Divide the shape into smaller shapes

• Cross out unnecessary measurements

• Multiply the length by the width

What is the total perimeter of the given irregular shape?

• 24 centimeters

• 26 centimeters

• 42 centimeters

• 36 centimeters

Tags

CCSS.3.MD.D.8

How many centimeters is the perimeter of the given shape?

• 34 centimeters

• 26 centimeters

• 22 centimeters

• 30 centimeters

Tags

CCSS.3.MD.D.8

How do you calculate the area of an irregular shape?

• By adding the area of smaller triangles

• Using the Pythagorean theorem

• Dividing it into smaller rectangles and calculating each area

• Multiplying the longest side by the shortest side

Tags

CCSS.6.G.A.1

Why are the measurements of seven and two crossed out in the example?

• They are used for calculating the area of triangles

• They are errors in measurement

• They do not apply to the rectangles formed

• They represent the shape's perimeter

What is the first step in calculating the area of an irregular shape?

• Multiplying the longest side by the shortest side

• Dividing the shape into smaller, calculable shapes

• Estimating the total area

• Adding all the sides

What is the area of the top rectangle divided from the irregular shape?

• 24 square centimeters

• 48 square centimeters

• 12 square centimeters

• 36 square centimeters

Tags

CCSS.6.G.A.1

What is the area of the bottom rectangle divided from the irregular shape?

• 48 square centimeters

• 12 square centimeters

• 24 square centimeters

• 36 square centimeters

Tags

CCSS.6.G.A.1

What is the total area of the irregular shape?

• 48 square centimeters

• 60 square centimeters

• 36 square centimeters

• 24 square centimeters

Tags

CCSS.6.G.A.1

If a shape cannot be divided into two rectangles, what should you do?

• Only calculate the perimeter

• Divide it into more than two rectangles

• Estimate the area

• Ignore the irregular parts