Find the perimeter of 10cm and 3cm on a rectangle 

To find the perimeter of a rectangle, you can use the formula:

\[ P = 2(l + w) \]

where \( P \) is the perimeter, \( l \) is the length, and \( w \) is the width.

Given:
\[ l = 10 \, \text{cm} \]
\[ w = 3 \, \text{cm} \]

Plugging in the values:

\[ P = 2(10 + 3) \]
\[ P = 2 \times 13 \]
\[ P = 26 \, \text{cm} \]

So, the perimeter of the rectangle is:

\[ 26 \, \text{cm} \]

Would you like more details or have any questions about this solution?

Here are 5 numbered questions you might ask next:
1. How do you derive the formula for the perimeter of a rectangle?
2. What is the area of a rectangle with length 10 cm and width 3 cm?
3. How would the perimeter change if both the length and width are doubled?
4. Can you explain how to find the diagonal of a rectangle given its length and width?
5. How do you find the perimeter if only the area and one side length are given?

**Tip:** Knowing the basic formulas for perimeter and area can help you solve many geometry problems involving rectangles and other shapes.

Learn how to find the perimeter of a rectangle with a length of 10 cm and a width of 3 cm using the formula P = 2(l + w). This problem is suitable for students learning about basic geometry and perimeter calculations in Grades 4-6.

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