To convince ourselves that these triangles are congruent, what else do we need to know?

AAS

angle, angle, and side, you did that

79+68=147

180(the sum of all three corner's angles)-147=33

angle, side, side or side side side,

Two triangles are congruent if their corresponding sides are equal in length, and their corresponding angles are equal in measure.

isosceles triangle

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