Find the perimeter and area of a square whose side measures :
1m 20 cm

Answer

To find the perimeter and area of a square whose side measures 1 meter 20 centimeters, we can follow these steps:

### Step 1: Convert the measurement to a single unit
We are given the side length as 1 meter and 20 centimeters. First, we need to convert everything to centimeters for easier calculations.

1 meter = 100 centimeters

So, we can convert 1 meter 20 centimeters into centimeters:
\[ \text{Total side length} = 100 \text{ cm} + 20 \text{ cm} = 120 \text{ cm} \]

### Step 2: Calculate the perimeter of the square
The formula for the perimeter \( P \) of a square is given by:
\[ P = 4 \times \text{side} \]

Substituting the side length we found:
\[ P = 4 \times 120 \text{ cm} \]
\[ P = 480 \text{ cm} \]

### Step 3: Calculate the area of the square
The formula for the area \( A \) of a square is given by:
\[ A = \text{side}^2 \]

Using the side length:
\[ A = (120 \text{ cm})^2 \]
\[ A = 14400 \text{ cm}^2 \]

### Final Answers:
- **Perimeter**: 480 cm
- **Area**: 14400 cm²

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