Abbey is flying a model plane. she releases the plane and it flies a distance of 55 meters, then makes a 130° turn and flies a distance of 35 meters before it lands. the map below, shows the path of the plane. the letter x marks the spot where the plane started and y marks the spot where the plane landed.
use the law of cosines to determine the distance, in meters, between where the model plane lands and where it started from.
enter this distance, rounded to the nearest meter.

l.ln.lln.k.nkl

step-by-step explanation:

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.