Metric Units of Length Kilometer Hectometer Decameter Meter Decimeter Centimeter Millimeter 1000 meters = 1 kilometer 100 meters = 1 hectometer 10 meters = 1 decameter 1 meter = 1 meter 0.1 meter = 1 decimeter 0.01 meter = 1 centimeter 0.001 meter = 1 millimeter Dekameter Centimeter Millimeter 1/100 of a meter = 1 centimeter 1/1000 of a meter = 1 millimeter Kilometer Hectometer Decameter Meter Decimeter Centimeter Millimeter 1/10 of a meter = 1 decimeter 1/100 of a meter = 1 centimeter 1/1000 of a meter = 1 millimeter Match the unit with the object: – Kilometer: Length of a bat – Millimeter: Thickness of a dime – Meter: Length of an ant – Centimeter: Height of a building – Meter: Length of a calculator – Meter: Length of a house – Meter: Distance to a church – Millimeter: Length of a worm Write the measurement of the line segment in millimeters: 28 cm = 280 mm 657 mm 189 mm Write the unit used to measure length: kilometer, meter, centimeter, or millimeter Length of an ant: millimeter Height of a building: meter Length of a calculator: meter Length of a house: meter Distance to a church: meter Length of a worm: millimeter
The Correct Answer and Explanation is:
Correct Matching of Units with Objects:
- Kilometer: Distance to a church
- A kilometer is a long unit of measurement that is used for distances between larger geographical locations, such as the distance to a church.
- Millimeter: Thickness of a dime, Length of a worm
- Millimeters are used for very small measurements, like the thickness of a dime or the length of a worm. They are appropriate for measurements that require precision at the smaller scale.
- Meter: Length of an ant, Length of a calculator, Length of a house
- Meters are typically used to measure objects of moderate size, such as the length of an ant (which could vary depending on the species) and the length of a calculator. The length of a house is also measured in meters, as houses are typically on the scale of several meters in length.
- Centimeter: Height of a building
- Centimeters are smaller than meters and are often used to describe measurements in smaller units. The height of a building, depending on its size, can be given in centimeters when more precise measurements are needed, though the height in general will often be expressed in meters. However, centimeters are useful for detailing specific measurements on parts of the building or smaller structures.
Measurement of the Line Segment in Millimeters:
- 28 cm = 280 mm
- Since 1 cm is equal to 10 mm, multiplying 28 cm by 10 gives 280 mm.
Units Used to Measure Length:
- Length of an ant: Millimeter
- The size of an ant is small, and millimeters are commonly used for such measurements.
- Height of a building: Meter
- The height of a building is most often measured in meters, as it provides an appropriate scale.
- Length of a calculator: Meter
- Calculators are typically measured in meters or parts of a meter, as they are not usually as small as millimeters or centimeters.
- Length of a house: Meter
- A house’s length is usually measured in meters because it typically covers a larger area.
- Distance to a church: Kilometer
- Distance over large areas (like the distance to a church) is typically measured in kilometers.
- Length of a worm: Millimeter
- The length of small organisms like worms is best measured in millimeters, as their size is on a smaller scale.
explanation:
The metric system is a standard system used worldwide to measure length, mass, and volume, among other things. Length measurements in the metric system are based on powers of 10, which makes conversion simple. A kilometer (km) is the largest unit among the options provided, and it is typically used to measure larger distances, such as the distance to a church or between cities.
The next smaller unit is the meter (m), commonly used for measuring the size of everyday objects. For example, the length of a calculator or the height of a building is usually measured in meters. The meter is versatile because it can handle both smaller and larger measurements when divided or multiplied by powers of ten.
Moving to smaller units, the decimeter (dm) measures one-tenth of a meter, while the centimeter (cm) is one-hundredth of a meter. These smaller units are used to measure more precise or smaller objects. The height of an object like a building could be measured in centimeters if more precision is needed, but meters are more commonly used for simplicity.
Finally, millimeters (mm) are used for very small measurements. For example, the thickness of a dime or the length of a worm is best measured in millimeters. A millimeter is one-thousandth of a meter, so it provides highly accurate measurements for objects that are too small to be measured in centimeters.
By using these standard units, conversions between them are easy. For example, to convert 28 cm to millimeters, you simply multiply by 10, resulting in 280 mm.
