Where's the Bomb?

A large flat field measures 50x50 kilometers. At a time t = 0, a bomb explodes somewhere on the field. There are 3 scattered sensors with synchronized clocks that record the exact time (in seconds) that the sound of the exploding bomb reaches them.

Given the x, y coordinates of each of the 3 sensors and the recorded time of each, find the location of the bomb:

bomb([[x1, y1, t1], [x2, y2, t2], [x3, y3, t3]]) ➞ (xb, yb)
# Bomb location

Examples

bomb([[0, 0, 72.886], [0, 50, 72.886], [25, 25, 72.886]]) ➞ (0, 25)

bomb([[0, 50, 145.773], [50, 50, 206.154], [50, 0, 145.773]]) ➞ (0, 0)

bomb([[5, 8, 48.872], [12, 21, 35.107], [24, 20, 22.203]]) ➞ (21, 13)

bomb([[18, 42, 35.558], [39, 16, 106.004], [7, 24, 32.202]]) ➞ (8, 35)

Notes

• The origin is at one corner of the square field so all the coordinates are positive integers in km units.
• The bomb's coordinates are integers.
• The speed of sound in air is 0.343 km/sec.