Finding Area of Irregular Quadrilaterals on a Grid

The video tutorial guides viewers through calculating the area of a quadrilateral by breaking it into simpler shapes, such as triangles and rectangles, using a grid of unit squares. The instructor provides step-by-step instructions on measuring dimensions and calculating areas of individual shapes, then summing them to find the total area. The tutorial emphasizes using whole units for easier calculations and demonstrates the process with clear examples.

What is the first step in finding the area of a complex shape like a quadrilateral?

• Divide it into simpler shapes

• Measure the perimeter

• Calculate the diagonal lengths

• Estimate the area visually

Which method is suggested for simplifying the area calculation of a quadrilateral?

• Ignoring small sections

• Breaking it into smaller triangles and rectangles

• Approximating the area

• Using a calculator

Tags

CCSS.6.G.A.1

What is the area of a triangle with a base of 5 units and height of 1 unit?

• 5 square units

• 1 square unit

• 2.5 square units

• 10 square units

Tags

CCSS.6.G.A.1

How many units long is the rectangle mentioned in the breakdown?

• 6 units

• 3 units

• 4 units

• 5 units

Tags

CCSS.2.MD.A.3

How do you calculate the area of a triangle?

• Length times width

• Half the base times the height

• Base plus height

• Base times height

Tags

CCSS.6.G.A.1

What is the area of a triangle with a base of 4 units and height of 2 units?

• 4 square units

• 8 square units

• 2 square units

• 16 square units

Tags

CCSS.6.G.A.1

What is the area of a triangle with dimensions 6 units by 2 units?

• 6 square units

• 24 square units

• 12 square units

• 3 square units

Tags

CCSS.6.G.A.1

What is the area of a rectangle that is 3 units by 4 units?

• 7 square units

• 3 square units

• 12 square units

• 24 square units

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the total area of the quadrilateral?

• 32 square units

• 30 square units

• 27 square units

• 25 square units

Tags

CCSS.6.G.A.1

How many unit squares does the central rectangle contain?

• 16 squares

• 14 squares

• 12 squares

• 10 squares

Tags

CCSS.3.MD.C.6