6
10
80 degrees.
No, these are different units of measure.
400 square cm
Those are incompatible (non-convertable) units: Feet is a measure of length, atmospheres is a measure of pressure.
If abcd is a parallelogram, then the lengths ab and ad are sufficient. The perimeter is 36 units.
It is possible, but it all depends on what they are lengths of!
10
240 square units
10 suared units..
10
As we read the question, we sketched it out here on our yellow pad. We got 100 degrees for angle 'bec', but we have no confidence in that result, because we're not at all sure that our sketch is the only possible one that fits the details in the question. We're pretty sure that this is another case where we really need to see the labeled drawing described in the question before we can tease out any reliable answer.
The answer will depend on the units which were used to measure it as 10x10x5.The answer will depend on the units which were used to measure it as 10x10x5.The answer will depend on the units which were used to measure it as 10x10x5.The answer will depend on the units which were used to measure it as 10x10x5.
8
The question is a lot like asking: "Is ten minutes longer than a mile ?" They are different units of measure and cannot be compared. Square units measure area, cubic units measure volume.
An equilateral triangle with sides of 10/3 units, an isosceles triangle with 2 sides of a units and the third of 10-2a units (for any a<5), or several options for scalene triangles. A square or rhombus with sides of 2.5 units, or a rectangle or parallelogram with sides of b and 5-b units etc A regular pentagon with sides of 2 units. And so on.
Kilometer is a measure of length, and liter is a measure of volume. The two units of measure can not be equated.