Learn Arabic (Modern Standard): هذا التمثال مصنوع من الحجر.

مصنوع follows the standard passive participle pattern for Form I verbs. It is built from the root letters ص ن ع, which relate to making or creating. By plugging these root letters into the passive pattern, the meaning becomes 'made' or 'manufactured'.

Where is the word 'is' in this sentence?

Arabic does not use a word for 'is' in simple present-tense sentences. The 'is' is understood to exist right after the complete subject. Here, the subject is هذا التمثال (this statue), and the descriptive information is مصنوع (made), so the 'is' acts as an invisible bridge between them.

Why does التمثال have ال attached to it?

Attaching ال to a noun right after a pointing word like هذا links them into a single phrase meaning 'this statue'. If you removed the ال, the phrase would break apart into هذا تمثال, which means 'This is a statue'.

Why is the preposition من used here to mean 'of'?

In Arabic, the preposition من (which usually means 'from') is the standard way to indicate what material an object consists of. So the phrase مصنوع من literally means 'made from', which is how you express 'made of' in Arabic.