SITUATION $05$:

The $600mm600mm$ column is reinforced with $7-$D$25$ bars, $4-$D$25$ on one side and $3-$D$25$ on the other side. The factored axial load on the column is $3500$ KN and applied $300$ mm from the left side and $180$ mm from the bottom of the column. Clear concrete cover is $40$ mm $.$ Use $fy=415$MPa and $f{c}^{\text{'}}=21$MPa.

$13.$ What is the location of the plastic gentroid from the left side of the column in mm $?$

$($a$.)294$

b$.300$

c$.225$

d$.250$

$14.$ What is the factored moment on the column about the plastic centroid wity respect to horizontal axis in $KN-m?$

a$.420$

b$.22$

$6.0$

d$.1050$

$15.$ What is the factored moment on the column about the plastic centroid with respect to vertical axis in $KN-m?$

a$.420$

D$.22$

c$.0$

d$.1050$