Analyze the diagram below and answer the question that follows. D
B
G
a
b
10.2
12.4
10.2
12.4
F
H
A
10.2
12.4
СЕ
I
Which two triangles are congruent by the HL theorem?
A. a and b
B. b and c
C. a and c

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

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.