Question

this tumbler is made of a glass rewrite the sentence correctly​

Answer 1

sentence is correct dude!

Answer 2

Answer:

This tumbler is made up of glass.

Explanation:

“A” is an “indefinite article” and it is used before the singular noun or adjectives that the word starts with a consonant sound or used to specify a particular member in a group.

For example: “a cat”, “a cup of coffee”.

We do not use articles before the uncountable nouns.

For example: “information”, “air”, “pollution”.

Here glass is a noun which is uncountable so we should not use the article “A”.