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Advantages of the per unit systems?
The Values will fall in a narrow range(between 0 and 1), so any erroneous data can easily be caught. Computation is easy In transformer, PU impedance is same for both the sides.
What kind of quantities can be added or subtracted from both sides of an equation?
You can add or subtract any quantity on both sides of an equation, without changing the equation's solution set. Just make sure you add or subtract the same thing on both sides.
Why do you subtract 6 from both sides?
In any equation, regardless of the number adding or subtracting, multiplying or dividing, you must do the same to both sides. This ensures you are not changing the equation. If only one side was done, then the original equation has been altered and is no longer the same as it began. Changing both sides with the same values keeps all things equal.
Is rectangle a symmetric shape?
Yes, a shape is symmetrical if it can be cut in half in any way, and be the same on both sides.
Are any sides the same length trapezium?
Up to three sides can be of the same length but none have to be the same.
Define what a tie ballgame is?
A tie, in any kind of game, occurs when both sides have scored the same number of points.
How many lines does an irregular polygon have?
An irregular polygon is one which may either have one or more sides that are not the same length as other sides. Or it can have one or more angles that are not the same measure as other angles. Or it could have both. It can have any number of sides (>2).
Is the decagon a regular?
Any Polygon can be a regular figure, if the figure has all straight sides and edges, with all the same length. If the decagon had all straight edges, sides, and same lengths of sides, it would be a regular figure. Otherwise, it would not, and would be an irregular Decagon. * * * * * That is not a correct answer. Any polygon, by definition MUST have all straight sides (which are the same as edges). What makes a polygon regular is that all the sides are the same length AND that all the interior angles are the same measure. Both these conditions must be met.
Why is it important to keep both sides of the equation equal?
If both sides of an equation are not equal, it won't be an equation any more! In solving equations, the strategy is to change both sides in the same way, so that an 'equivalent' equation is produced. An equivalent equation has the same solution as the original equation. You are aiming for an equation in which the variable is alone on one side. The quantity on the other side is the solution.
Are any sides for a trapezium the same length?
Not necessarily, but the two non parallel sides could be the same length.
How can you show if two triangles are not congruent?
Triangles can only be congruent if you can prove that they have one of these three properties: 1. All the sides are the same lengths as the sides on the other triangle (e.g. both have sides of 3, 4 and 5 cm) 2. Two of the sides, and the angle between them are the same in both triangles 3. Two of the angles and the corresponding side to them (the side that is attached to both corners where the angles are measured) are the same in both triangles. If any of the above can be proved to be true then the triangles are congruent. However, if any one of the conditions above are proved to be false - for example if one triangle has two sides the same, but one has the angle between them of 40 degress and the other at 41 degrees, (breaking rule 2) then the triangles are not congruent.
Is base and sides in a pyramid the same?
No. The sides are always triangular, the base can be a polygon with any number of sides.
