Find the measure of the exterior angle

98°

Step-by-step explanation:

The sum of two interior angles in a triangle is equal to an exterior angle's measure

a + 10 + 44 = 2a add like terms

a + 54 = 2a subtract a from both sides

54 = a and since the measure of exterior angle is 2a

2 × 54 = 98°

108°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

2a is an exterior angle of the triangle, thus

2a = a + 10 + 44 = a + 54 ( subtract a from both sides )

a = 54 , thus

2a = 2 × 54 = 108°

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

explanation:

step-by-step explanation: