Calculate Total Legs: Finding the Product of 12 Animals and Average of 3

To solve this problem, we'll follow these steps:

• Step 1: Identify the given information: There are 12 animals, and the average number of legs is 3.
• Step 2: Use the formula for the total sum based on the average: $\text{Total Sum} = \text{Average} \times \text{Number of Terms}$.
• Step 3: Perform the calculation using the given numbers.

Now, let's work through each step:
Step 1: We know there are 12 animals and the average number of legs per animal is 3.
Step 2: We'll use the formula $\text{Total Sum} = \text{Average} \times \text{Number of Terms}$. In this context: $\text{Total Sum of legs} = 3 \times 12$.
Step 3: Calculating gives us $3 \times 12 = 36$.

Therefore, the total number of legs that all the animals in the zoo have is $36$.