Find the area of the trapezoid below by decomposing it into fimilar shape?

168 feet

Step-by-step explanation:

area of trapezoid = length (a)+ breadth(b) / 2 height

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m