Question

Use the Pythagorean theorem to find the missing length

Answer 1

a^2+2^2=4^2
a^2+4=16
a^2=12
a=3.464
a^2+3^2=6^2
a^2+9=36
a^2=27
a=5.196
a^2+4^2=8^2
a^2+16=64
a^2=48
a=6.928
idk how to solve the last one but i did the other three.