Question

1. a picture frame is 5 cm long and 4 cm wide. how many square centimeters is the area of the frame? 4. a rectangular playground is 12 meters long and 7 meters wide. what is its area in square meters? 5. a classroom has a bulletin board shaped like a rectangle 6 ft by 4 ft. she wants to cover it with square paper tiles that are 1 ft each. how many tiles does she need? standards nc.3.md.8 1. ellen is comparing two rectangles. rectangle p is 5 inches long and 1 inch wide. rectangle q is 4 inches long and 2 inches wide. which statement correctly compares the areas and perimeters of the rectangles? a. the rectangles have equal areas, and rectangle p has a greater perimeter. b. the rectangles have equal areas, and rectangle q has a greater perimeter. c. the rectangles have equal perimeters, and rectangle p has a greater area. d. the rectangles have equal perimeters, and rectangle q has a greater. 2. the perimeter of this pentagon is 52 cm. what is the missing length? a. 6 cm b. 8 cm c. 9 cm d. 10 cm 3. a garden is shaped like a rectangle. its length is 8 ft and width is 5 ft. how much fencing is needed to go around the garden? 4. a playground has a rectangular sandbox. length = 10 m, width = 6 m there is a path 1 m wide around three sides. find the total perimeter to build a fence around only the three sides. 5. rectangle length = 10 units width =? perimeter = 36 units

Explanation:

Let's solve the problem about the rectangular picture frame (question 3):

Step 1: Recall the formula for the area of a rectangle

The area \( A \) of a rectangle is given by the formula \( A = \text{length} \times \text{width} \).

Step 2: Identify the length and width of the picture frame

The length of the picture frame is \( 5 \, \text{cm} \) and the width is \( 4 \, \text{cm} \).

Step 3: Calculate the area

Substitute the values of length and width into the formula:
\( A = 5 \, \text{cm} \times 4 \, \text{cm} = 20 \, \text{square centimeters} \).

Answer:

The area of the picture frame is \( 20 \) square centimeters.