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Consider a right triangle. One of the exterior angles 90 degrees.
Yes. It is one of the 7 basic units of the SI.Yes. It is one of the 7 basic units of the SI.Yes. It is one of the 7 basic units of the SI.Yes. It is one of the 7 basic units of the SI.
Yes. Consider the situation when: the right-angled triangles are also isosceles and the hypotenuse (longest side) of the triangles is equal to the side of the square. If you surround a square with four of right-angled triangles (the sides of the square being in contact with the hypotenuses of the triangles), you get a larger shape which is also a square. Taking this as a basic unit, you can make a tesselations. You can also make tessalations if you have two sets of squares, one with sides the same length of the hypotenuse of the triangles and one with sides the same length as the smaller sides of the triangles.
There can be no conversion.A gram is a measure of mass. A milliletre is a measure of volume. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid.If you are not convinced, consider a millilitre of air. How many grams? Next consider a millilitre of lead. How many grams?
None. A kilogram is a measure of mass. A litre is a measure of volume. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid. If you are not convinced, consider a litre of air. How many kilograms? Next consider a litre of treacle. How many kilograms?