contacts.xml

<layout version="0.1.0">
    <contacts_index_index translate="label">
        <label>Contact Us Form</label>
        <reference name="root">
            <action method="setTemplate"><template>page/3columns.phtml</template></action>
            <action method="setHeaderTitle" translate="title" module="contacts"><title>Contact Us</title></action>
        </reference>
        <reference name="content">
            <block type="core/template" name="contactForm" template="contacts/form.phtml">
                <block type="captcha/captcha" name="captcha">
                    <reference name="head">
                        <action method="addJs"><file>mage/captcha.js</file></action>
                    </reference>
                    <action method="setFormId"><formId>contact_form</formId></action>
                    <action method="setImgWidth"><width>230</width></action>
                    <action method="setImgHeight"><width>50</width></action>
                </block>
            </block>
        </reference>
    </contacts_index_index>
</layout>