If one side of a square is 4 cm, then what will be its area and perimeter?

Options

A. 16, 18
B. 18, 16
C. 16, 16
D. 18, 18

Answer

To find the area and perimeter of a square when one side is given, we can follow these steps:

**Step 1: Identify the length of one side of the square.**
- Given: One side of the square (a) = 4 cm.

**Step 2: Calculate the area of the square.**
- The formula for the area (A) of a square is:
\[ A = a^2 \]
- Substituting the value of a:
\[ A = 4^2 = 16 \text{ cm}^2 \]

**Step 3: Calculate the perimeter of the square.**
- The formula for the perimeter (P) of a square is:
\[ P = 4 \times a \]
- Substituting the value of a:
\[ P = 4 \times 4 = 16 \text{ cm} \]

**Final Answers:**
- Area = 16 cm²
- Perimeter = 16 cm

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