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**Hint:**Use the definition of the contrapositive concept of mathematical logic and convert the given statement into the contrapositive statement.

**Formula used:**

The contrapositive of a conditional statement, interchange the original hypothesis and the conclusion of the statement.

The negation of a statement is the opposite of the original statement.

The negation is represented by a symbol: \[\sim \]

**Complete step by step solution:**

The given statement is “If two triangles are identical, then these are similar.”

Let’s consider,

\[p:\] two triangles are identical

\[q:\] two triangles are similar

So, the symbolic representation of the given statement is: \[p \to q\]

Now apply the definition of the contrapositive concept of mathematical logic.

Then the contrapositive representation is: \[\sim q \to \sim p\]

The negation statements of the above statements are:

\[\sim p :\] two triangles are not similar

\[\sim q :\] two triangles are not identical

Therefore, the word representation of the contrapositive statement is,

\[\sim q \to \sim p\]: If two triangles are not similar, then these are not identical.

**Hence the correct option is A.**

**Note:**Students often get confused and consider contrapositive as the negation.

A contrapositive statement is a negation of terms of a converse statement.

Statement: \[a \to b\]

Contrapositive statement: \[\sim b \to \sim a\]

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