Question

Please can someone tell me answer?

Answer 1

Step-by-step explanation:

the right answer is 3.62 cm

Answer 2

Step-by-step explanation:

it is a right angle

YZ

$zy {}^{2} = xy {}^{2} + xz {}^{2} \\ zy { }^{2} = 3.2 {}^{2} + 1.7 { }^{2} \\ zy = \sqrt{3.2 {}^{2} + 1.7 {}^{2} }$

then calculate it