Geometry Review - MA.3.GR.2.1

Geometry Review
MA.3.GR.2.1 - Explore area as an attribute of a two-dimensional figure by covering the figure with unit squares without gaps or overlaps. Find areas of rectangles by counting unit squares.

By Alex Meads

Area

the number of unit squares to cover a shape

10 square units

Math Response

How many unit squares cover the rectangle?

Type answer here

Correct Answer: 15

Deg^°

Rad

Math Response

How many unit squares cover the square?

Type answer here

Correct Answer: 9

Deg^°

Rad

Area

You can use the formula A = l x w to find the area of a square or rectangle.

​Area = length x width

Area

Drag and Drop

l x w = A



​

Placeholder

x​

Placeholder

=​

Placeholder

Drag these tiles and drop them in the correct blank above

12

3

36

Drag and Drop

l x w = A



​

Placeholder

x​

Placeholder

=​

Placeholder

Drag these tiles and drop them in the correct blank above

7

3

21

Match

Match the following shapes to their area.

36 square meters

54 square meters

48 square meters

21 square meters

36 square meters

• 36 square meters

• 54 square meters

• 48 square meters

• 21 square meters

• 36 square meters

l x w = A

​

We can use the formula for area to solve problems.

l x w = A

​

We can use the formula for area to solve problems.

Math Response

Type answer here

Correct Answer: 16

Deg^°

Rad

Math Response

Type answer here

Correct Answer: 60

Deg^°

Rad

Hotspot

Which figures have an area of 36 square units?

perimeter

the distance around a shape
You can add up all the sides to get the perimeter.

14 units

Math Response

What is the perimeter of the rectangle?

Type answer here

Correct Answer: 16

Deg^°

Rad

Math Response

What is the perimeter of the square?

Type answer here

Correct Answer: 12

Deg^°

Rad

26 yards

Math Response

What is the perimeter of the square?

Type answer here

Correct Answer: 16

Deg^°

Rad

Math Response

What is the perimeter of the figure?

Type answer here

Correct Answer: 16

Deg^°

Rad

We can use what we know about perimeter to problems.

Hotspot

What is the perimeter of the rug?

Math Response

Type answer here

Correct Answer: 22

Deg^°

Rad

Math Response

Type answer here

Correct Answer: 36

Deg^°

Rad