In standard fonts, the letters A, M, T, U, V, W and Y each has a vertical line of symmetry that divides it into two corresponding mirror images. B, C, D, E and K have horizontal lines of symmetry. Both horizontal and vertical lines of symmetry occur in H, I and X. Meanwhile, F, G, J, L, N, P, Q, R, S and Z have no lines of symmetry.
Continue ReadingThe letter O is unique because it has an infinite number of lines of symmetry. If it is folded over on any diagonal, the two halves of the letter are congruent mirror images.
A few lower case letters that resemble their upper case partners also have lines of symmetry. These smaller versions are c, o, v, w and x. Symmetry of letters depends upon the font that is used. For instance, depending upon how it is written, a lower case "u" can have a vertical line of symmetry.
Certain words have lines of symmetry, as well. When written in block capital letters, ICEBOX, DECIDED, EXCEEDED, CHECKBOOK, HIDE and CHOICE all have horizontal symmetry.
A few capital letters have "rotational symmetry," which means they are identical if they are turned 180 degrees. These letters are H, I, O, S, X and Z.
Learn more about Literary WritingThe tension of a body that is moving upward is calculated by using the formula T = W + ma, where "T" denotes tension, "W" indicates weight, "m" represents mass and "a" is the acceleration. If the body is moving downward, the tension is computed by using the formula T = W - ma.
Full Answer >The formula for the market value of debt is E((1-(1/(1 + R)^Y))/R) + T/(1 + R)^Y, where E is the annual interest expense, R is the cost of debt, T is the total debt and Y is the average maturity, in years, of the debt. However, calculating the market value of debt can be tricky, because not many firms carry their debt in bond form.
Full Answer >To calculate the grade of a slope, represented by the lowercase letter M, divide the rise, expressed as Y, by the run, expressed as X, then multiply by 100. The grade of a slope is most commonly expressed as a percentage.
Full Answer >Persuasive letters can address any topic of which a student wants to convince another party. For younger students, the teacher may want them to write a letter urging the library to purchase a certain book or periodical, or one which argues why people should adopt pets from the pound. For more advanced students, letters targeting the hazards of smoking or using drugs can coordinate with similar lessons on those issues.
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