I NEED HELP WITH THIS QUESTION

Question

Three people are sitting on a bus. Michael is directly behind Anne and directly left of Kaylee. If Anne and Michael are 1 meter apart, and Kaylee and Anne are 2 meters apart, what is the distance between Michael and Kaylee? If necessary, round to the nearest tenth.

Answer 1

d^2 = 2^2 -1^2 = 4-1 = 3. they form a right triangle, 2 = hypotenuse

d =sqr3 = 1.732

d = 1.7 meters