High School Placement Test (HSPT) Practice Test 2026 – Your All-in-One Guide to Exam Success!

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

Perimeter = 2 × (length + width)

In this case, the dimensions are 30 mm (length) and 20 mm (width). Plugging these values into the formula gives:

Perimeter = 2 × (30 mm + 20 mm)

Perimeter = 2 × 50 mm

Perimeter = 100 mm

Next, to convert millimeters to meters, you use the fact that 1 m = 1000 mm. Therefore:

100 mm = 100 mm / 1000 = 0.1 m

The calculation shows that the perimeter of the rectangle is 0.1 m.

Now, regarding the options provided:

- The perimeter is neither 0.0006 m nor 0.06 m, as these values do not correspond to the calculated perimeter of 0.1 m.

- Additionally, the option stating 0.6 m is also incorrect, as it is larger than our calculated perimeter.

- Finally, the option 6 m is far too large when compared to our computed result.

The correct calculation indicates that none of the provided options agree with the perimeter of the rectangle, suggesting a