Area of a Rectangle

What is the area of this card in square centimeters?

Tags

CCSS.3.MD.C.6

Which of these rectangles have an area of 36 square centimeters?​ (a)   ​ ​ (b)   (c)  

• Rectangle V
• Rectangle X
• Rectangle Y
• Rectangle W
• Rectangle Z

Tags

CCSS.3.MD.C.6

What is the perimeter of the mirror in inches?

Tags

CCSS.4.MD.A.3

What is the length of the floor of Mr. Bryan's cabin in feet?

Tags

CCSS.4.MD.A.3

What mistake, if any did Gretchen make?

• The perimeter of the rectangle should be 24 yards.

• The perimeter of the square should be 36 yards.

• The perimeter of the triangle should be 20 yards.

• Gretchen did not make any mistakes in the table.

Tags

CCSS.3.MD.D.8