https://file.aiquickdraw.com/mathbot/file/17239476684884iu6mxda.jpg

Find the perimeter of each of these shapes. You will need to convert the measurements to the same
units. Give your answers in the units given in red.

To find the perimeter of the triangle, we need to convert all the side lengths to the same unit as the one in red, which is centimeters (cm). Let's start by converting the other sides:

1. **Convert 0.43 m to cm:**
   \[
   0.43 \, \text{m} = 0.43 \times 100 \, \text{cm} = 43 \, \text{cm}
   \]

2. **Convert 201 mm to cm:**
   \[
   201 \, \text{mm} = 201 \div 10 \, \text{cm} = 20.1 \, \text{cm}
   \]

Now, the side lengths of the triangle in centimeters are:
- 43 cm
- 20.1 cm
- 39 cm

**Perimeter** is the sum of the lengths of all sides:
\[
\text{Perimeter} = 43 \, \text{cm} + 20.1 \, \text{cm} + 39 \, \text{cm} = 102.1 \, \text{cm}
\]

So, the perimeter of the triangle is **102.1 cm**.

Would you like more details, or do you have any questions?

Here are five related questions:
1. How would you convert units from inches to centimeters?
2. What is the formula for the area of a triangle using the base and height?
3. How can you calculate the perimeter of a triangle if only the area and two sides are given?
4. What is the significance of using consistent units in mathematical calculations?
5. Can the perimeter of any polygon be determined if only the side lengths are known?

**Tip:** Always ensure all units are consistent before performing any addition or multiplication in geometry problems.

Learn how to calculate the perimeter of a triangle by converting side lengths to the same unit and adding them together. This problem involves converting measurements from meters and millimeters to centimeters and computing the perimeter using simple addition. Suitable for students in Grades 5-7.

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