$3\mathrm{.}6-3$ Select a double$-$angle tension member to resist a service dead load of

$30$ kips and a service live load of $90$kips. The member will be connected

with two lines of $\frac{7}{8}-$inch$-$diameter bolts placed at the workable gage dis$-$

tances $($see Manual Table $1-7$A$).$ There will be more than three bolts in each

line. The member is $25$ feet long and will be connected to a $\frac{3}{8}-$inch$-$thick

gusset plate. Use A$572$ Grade $50$ steel.