Calculate Parallelogram Perimeter: Given Sides 20 and 15 Units

Given the parallelogram:

Calculate the perimeter of the parallelogram.

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

• Step 1: Identify the given side lengths of the parallelogram.
• Step 2: Use the perimeter formula for a parallelogram, $P = 2(a + b)$.
• Step 3: Perform the calculation to find the perimeter.

Let's proceed with the solution:

Step 1: The problem provides the side lengths of the parallelogram as $AB = 20$ units and $AD = 15$ units.

Step 2: Use the formula for the perimeter of a parallelogram, $P = 2(a + b)$, where $a = 20$ and $b = 15$.

Step 3: Plug the side lengths into the formula:

Calculating further, we get:

Therefore, the perimeter of the parallelogram is $70$.