Area and perimeter of rectangles

Which of the following expressions would not help me find the area of this rectangle?

• 5 x 10

• 10 x 5

• 5 + 10

• 10 + 10 + 10 + 10 + 10

Tags

CCSS.3.MD.C.6

What is the area of a rectangle with side lengths 2 by 8?

• 28

• 16

• 10

• 14

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Find the perimeter of the rectangle.

• 40 mm 
• 82 mm 
• 420 mm 
• 41 mm 

Tags

CCSS.4.MD.A.3

Find the perimeter of the rectangle.

• 94 in.
• 47 in.
• 38 in.
• 532 in.

Tags

CCSS.4.MD.A.3

Find the perimeter of the rectangle.

• 40 cm
• 300 cm
• 80 cm
• 60 cm

Tags

CCSS.4.MD.A.3

Find the perimeter of the rectangle.

• 50 in.
• 25 in.
• 45 in. 
• 100 in.

Tags

CCSS.4.MD.A.3

How do you find the area of a rectangle?

• A = 2 ( l + w) 
• A = 1/2 (b · h) 
• A = l · w
• A = l ÷ w

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Find the area of the rectangle.

• 140 cm²
• 70 cm²
• 34 cm²
• 64 cm²

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Find the area of the rectangle.

• 36 in.²
• 72 in.²
• 26 in.²
• 13 in.²

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Find the area of the rectangle.

• 21 ft²
• 180 ft²
• 42 ft²
• 90 ft²

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3