which sentence contains a gerund

playing base full with his friends , Noah decided he needed a new bat and gloove

The sentence "playing baseball with his friends" contains a gerund.

The sentence "Playing baseball with his friends, Noah decided he needed a new bat and glove" contains a gerund.

The sentence that contains a gerund is "playing baseball with his friends."

To identify a gerund in a sentence, you need to look for a word that ends in "-ing" and functions as a noun. In this case, the word "playing" is the gerund because it functions as the subject of the sentence.