In this lesson, we will learn how to find the area of irregular polygons and estimate the area of irregular shapes using a grid of unit squares.

Q1:

Suppose each square in the shown grid is a 1 × 1 square centimeters. What is the area of the coloured shape?

Q2:

Estimate the area of the figure.

Q3:

Find the area of the shape.

Q4:

Q5:

Determine the area of the figure.

Q6:

Find the area of the shape given that each square represents 1 square centimeter.

Q7:

Jacob made this sign for his yard sale; find its area.

Q8:

Ethan made this sign for his yard sale; find its area.

Q9:

Q10:

Find the area of this shape. Remember that the area of each small square is 1.

Q11:

Q12:

Find the area of this shape. Remember that the area of each square is 1.

Q13:

Q14:

Find the area of the shape by counting the squares.

Q15:

Q16:

Which is the best estimate for the area of this shape? Remember that the area of each small square is 1.

Q17:

Q18:

Q19:

Q20:

Work out the area of the shaded shape. Each square represents 1 square centimetre.

Q21:

Estimate the area of the given figure.

Q22:

Q23:

A landscape architect designed a pond. Estimate its area.

Q24:

Which is the best estimate of the area of the figure?

Q25:

The diagram shows the floor plan for a tree house. One square on the grid represents 1 square foot. About how many square feet is the area of the floor?

Don’t have an account? Sign Up