Metric System and Perimeter Concepts

Professor Bruno Viana introduces units of length and their conversions, focusing on the metric system. He explains how to convert between different units using multiplication and division, and provides examples to illustrate these concepts. The video also covers the concept of perimeter, explaining how to calculate it for different shapes, and discusses the importance of understanding unit conversions in geometry.

What is the standard unit of length in the International System of Units (SI)?

• Kilometer

• Centimeter

• Meter

• Millimeter

Which prefix represents 1000 times the base unit in the metric system?

• Kilo

• Hecto

• Deca

• Milli

How many meters are in one hectometer?

• 10

• 100

• 0.1

• 1000

To convert from decameters to meters, you should:

• Multiply by 100

• Divide by 10

• Divide by 100

• Multiply by 10

What is the equivalent of 0.1 in fraction form?

• 1/100

• 1/1

• 1/10

• 1/1000

If you have 3 kilometers, how many meters do you have?

• 30000

• 30

• 3000

• 300

How many meters are equivalent to 72.64 decameters?

• 72640

• 7.264

• 7264

• 726.4

What is the perimeter of a rectangle with sides measuring 25 cm and 20 cm?

• 45 cm

• 70 cm

• 50 cm

• 90 cm

How do you calculate the perimeter of a polygon?

• Subtract all sides

• Divide all sides

• Add all sides

• Multiply all sides

What is the perimeter of a triangle with sides measuring 5 m, 4 m, and 3 m?

• 10 m

• 12 m

• 15 m

• 9 m