Wordpress get_posts with image

Question

So, I want to display titles and excerpt in line with images? How can I do that?

<div id="treia_box" style="height:350px; width:350px;"> 
    <?php
    add_filter('excerpt_length', 'new_excerpt_length');
    global $post;
    $args = array( 'numberposts' => 3, 'category' => 29 );
    $myposts = get_posts( $args );
    foreach( $myposts as $post ) :  setup_postdata($post); ?>
    <h2><a href="<?php the_permalink(); ?>"<?php the_title('<h7>', '<h7>'); ?></a></h2>
    <?php $size = array(75,75);
echo get_the_post_thumbnail($post_id, $size)?>
    <h6><?php the_excerpt(); ?></h6> 
    <?php endforeach; ?>    
</div>

Answer 1

get_the_post_thumbnail($post_id, $size) would be correct , but :

1 - you need to specify $size , e.g. : "large" , "thumbnail" "my_custom_size"

get_the_post_thumbnail($id, 'thumbnail');     // Thumbnail
get_the_post_thumbnail($id, 'medium');        // Medium resolution
get_the_post_thumbnail($id, 'large');         // Large resolution

get_the_post_thumbnail($id, array(100,100) ); // Other resolutions

2 - It will work only if the user (you) define a post thumbnail (featured - image when creating a post)