Question

mathup name: length and area (continued) c) 3.8 km = ____ m d) 14.72 km = ____ m 5. what is the perimeter of each rectangle? a) grid with a rectangle b) rectangle with height 10 and width 4 6. what is the area of each rectangle in question 5?

Explanation:

Step1: Convert km to m for c)

1 km = 1000 m, so 3.8 × 1000 = 3800

Step2: Convert km to m for d)

14.72 × 1000 = 14720

Step3: Find perimeter of 5a (rectangle on grid)

Assume grid squares are 1 unit each. Count sides: width=4, length=6. Perimeter = 2×(4+6)=20

Step4: Find perimeter of 5b (rectangle with 10 and 4)

Perimeter = 2×(10+4)=28

Step5: Find area of 5a

Area = 4×6=24

Step6: Find area of 5b

Area = 10×4=40

Answer:

c) 3800
d) 14720
5a) 20
5b) 28
6a) 24
6b) 40