Area Scaling Up - Rectangles

Area - How it Works - Video

Example 1a

Example 1a:

Each square is 2 cm by 2 cm. If we label each square on the top, then we have 2 cm plus 2 cm which equals 4 cm.

If we label each square on the right, then we have 2 cm plus 2 cm plus 2 cm which equals 6 cm.

Then we can follow the formula and multiply the length and width to find the area. So, we have 6 cm times 4 cm, which gives us 24 cm².

Example 1b

Example 1b:

Each square is 2 cm by 2 cm. If we count the number of squares inside the rectangle, there are 6 squares.

Now we can find the area of each square. Since each square is 2 cm by 2 cm, then the area is 2 cm times 2 cm. The result is 4 cm².

Now all we have to do is multiply the number of squares in the rectangle by the area of each square to find the area of the rectangle. So 4 cm times 6 total squares is 24 cm².

Example 2a

Example 2a:

Each square is 3 cm by 3 cm. If we label each square on the top, then we have 3 cm plus 3 cm plus 3 cm plus 3 cm which equals 12 cm.

If we label each square on the right, then we have 3 cm plus 3 cm plus 3 cm which equals 9 cm.

Then we can follow the formula and multiply the length and width to find the area. So, we have 12 cm times 9 cm, which gives us 108 cm².

Example 2b

Example 2b:

Each square is 3 cm by 3 cm. If we count the number of squares inside the rectangle, there are 12 squares.

Now we can find the area of each square. Since each square is 3 cm by 3 cm, then the area is 3 cm times 3 cm. The result is 9 cm².

Now all we have to do is multiply the number of squares in the rectangle by the area of each square to find the area of the rectangle. So 9 cm times 12 total squares is 108 cm².

Live Worksheet

Teacher - Edpuzzle Link