How many significant figures are there in each of the following numbers:
(i) `1.00 xx 10^(6)`, (ii) 0.00010, (ii) `pi`

Explanation

To determine the number of significant figures in each of the given numbers, we will apply the rules of significant figures.

### Step-by-Step Solution:

**(i) `1.00 x 10^(6)`**

1. **Identify Non-Zero Digits**: The number `1.00` contains the digit `1`, which is a non-zero digit. According to the rules, non-zero digits are always significant.

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