Answer:
the answer is 2.87
Explanation:
use the pythagorean theorem
2^2+b^2=4^2
that goes to b= 3.5
for the triangle with x you also need to use the pythagorean theorem
+=
4+=12.25
subtract 4 on both sides
=8.25
=
x=2.87
5.6m questions
7.3m answers