The supplement of <span><span>135°</span><span>135°</span></span> is the angle that when added together form a straight angle (<span><span>180°</span><span>180°</span></span>).<span><span><span>180°</span><span><span>−135</span>°</span></span><span><span>180°</span><span><span>-135</span>°</span></span></span>Subtract <span>135135</span> from <span>180180</span> to get <span>4545</span>.<span>45<span>°</span></span>
