Answer:
GH is 4.6 units.
Step-by-step explanation:
because GK and KJ are congruent, the measure of HJ and GH much be congruent, as well.
good luck:)
7
form a proportion
12/2=42/x
cross multiply
12x=84
x=7
5√3+2√27+1√3
=5√3+2×3√3+1√3
=√3(5+6+1)
=12√3