Finding the Perimeter and Area of Squares and Rectangles

How do we solve for Perimeter?  

• length x width

• L x W

• Add all the sides

• add then multiply by 4

Tags

CCSS.3.MD.D.8

How do we solve for AREA of a rectangle?  

• multiply side times 6

• Length x width

• cannot solve, there are no numbers

• add all the sides together

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What did I do wrong when solving for perimeter?
Length:  7 cm
Width:  4 cm
7 x 4 = 28 squared cm

• your answer should be 28 cm

• you multiplied, you should add 7 + 7 + 4 + 4

• you solved for perimeter

• you should multiply 4 x 7 

Tags

CCSS.4.MD.A.3

Compare these two squares.
A:  4 by 5
B:  10 by 2

• they have the same perimeter

• the widths are the same

• the side lengths are the same

• they have the same area

Tags

CCSS.3.MD.D.8

Which of the following will give you the largest area?
A: 8 by 8
B: 9 by 8
C: 10 by 2
D: 11 by 1

• A

• B

• C

• D

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

If you are finding the distance around an object, what are you solving for?  

• Area

• Volume

• Plus and Minus

• Perimeter

Find the perimeter of the rectangle.

• 5.20 cm

• 15.73 cm

• 47.151 cm

• 31.46 cm

Tags

CCSS.4.MD.A.3

Find the perimeter of the square.

• 5.2 mm

• 1.69 mm

• 2.6 mm

• 0.52 mm

Tags

CCSS.4.MD.A.3

What is the definition of perimeter?

• Add up all the sides

• The total distance around a figure

• The total space inside a figure

• The square units to cover a figure

What's the formula for area of a square?

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3