Vocabulary Lesson 12

an instrument that measures the height at which an object, such as an aircraft, is located

• altimeter

• barometer

• diameter

• geometry

an instrument that measures distance traveled by a vehicle

• diameter

• odometer

• perimeter

• metric

an instrument used for measuring very small distances

• kilometer

• metric

• metronome

• micrometer

referring to a system of weights and measures based on units of 10, 100, and 1000

• kilometer

• metric

• metronome

• micrometer

a unit of length equal to 1000 meters, or about 0.6214 mile

• kilometer

• metric

• metronome

• micrometer

an instrument used to mark time in steady beats at various speeds

• kilometer

• metric

• metronome

• micrometer

a straight line segment that passes through the center of a circle or sphere with both of its ends on th boundary

• alimeter

• barometer

• diameter

• geometry

an instrument that measures the air pressure of the atmosphere and is widely used in the study and forecasting of weather

• altimeter

• barometer

• diameter

• geometry

the branch of mathematics dealing with measurements and relationships of points, lines, angles, surfaces, and shapes

• altimeter

• barometer

• diameter

• geometry

the sum of the lengths of the segments that form the sides of a geometrical figure such as a polygon or circle; outer boundary of such a figure

• diameter

• odometer

• perimeter

• metric