A rectangular garden has a length of 20 yards and a width of 42 yards. A diagonal path runs from one end of the garden to the other. How long is the diagonal path?

Step-by-step explanation:

The diagonal separates the rectangle into 2 triangles. Therefore to calculate the length of the diagonal we can use the Pythagorean theorem.

Let the diagonal equal x

Therefore:

2nd one in the first row is correct

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