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Is a meter the same as feet?
No. Meter is a metric unit of length whereas a foot ( plural feet ) is an imperial unit of length that was developed by the British. 1 meter is approximately 3.28 feet.
How can you determine how tall a tree is if it casts a shadow that measures 5 m and at the same time a meter stick casts a shadow that is 0.4 m long?
Measure the tree with the meter stick.
Are yards and meters in the same unit of measuring?
The English system is measured in units of yards. Meter unit length in the metric system.
Is metric and meter the same?
Yes and no. The metric system is a decimalized system of measurements that was developed in contrast to "Standard" or "English" measurements where conversions are more difficult to calculate. The principal unit of the metric system is the meter, a unit of length. Other units are based on the meter: Volume: a liter is 1/1000th of a meter cubed Mass: a kilogram is (basically) the mass of one liter of water Speed: measured in terms of meters per second or kilometers per hour etc.
How could you determine the distance to the moon knowing only the diameter and having only a meter stick and a pen?
Stand facing the moon. Hold your arm straight out holding the ruler horizontal and across your line of sight. Raise or lower the ruler stick so that the diameter of the moon is aligned with the straight edge. Using the pen, mark the apparent positions of the two ends of the diameter. Suppose the distance between then is x millimetres. Measure the distance from your eye to the ruler stick = y mm. Suppose the known diameter of the moon is m km. Then, by similar triangles, x/y = m/d where the distance to the moon is d km. That is, d = (m*y/x) km. It is best to use the same measurement unit for x and y, and for m and d. They can be Imperial or metric (or made up ones). That will avoid having to convert.
