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What are complementary angles in real life?

When a circular cake is cut up into four equal pieces, each piece has a right angle at the center. If a piece is divided into two, the angles of both pieces form a pair of complementary angles.\nThe flap of an envelope always forms a right angle when held vertically from its horizontal base. If the flap is moved up or down, it forms two angles that are always complementary.\nIf the sum of two angles is exactly 90 digress, it is said to be a complementary pair of angles.

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What is a frequency table?

The first column lists the separate pieces of data. If the data components are numerical values, the information in the first column is listed in ascending order. If the pieces of data cover a wide range of numbers, then the data in the first column is divided into intervals. In a test that measures scores from one to 100, for example, an individual might begin the first column with 0-10, then move to 11-20 and so forth. The second column in a frequency table tallies the number of instances a data value occurs. After each data or data interval is tallied, the third and final column puts the ov..

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How is underutilization depicted on a production possibility frontier graph?

The production possibility frontier graph depicts all combinations of output achievable by an economy producing two types of goods. The production possibility frontier itself consists of every combination of the two types of goods produced at the economy?s maximum capacity. Points between the frontier and origin indicate production below capacity, while those outside the frontier indicate levels of output that the economy cannot achieve. If a line is drawn from a given point to the origin and that line intersects the production possibility frontier, that point is outside the frontier.\nThe pro..

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What are some recipes to help students learn fractions?

A cupcake recipe is a good choice for teaching students about fractions. Teachers can give students a problem that involves a recipe for making 12 cupcakes, and ask them to adjust the recipe for 36 cupcakes. This entails taking each ingredient measurement in the recipes and multiplying them by a factor of three. As an example, if a cupcake recipe requires 1 1/2 cups of sugar, then tripling this amount can involve first converting the mixed fraction to the improper fraction 3/2 and then multiplying it by 3 to get 9/2 or 4 1/2 cups. Teachers can find a lesson plan for working with fractions and ..

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What is the difference between oblong and oval?

An oval can be classified as an oblong or elongated circle. An object with an oval shape can be described as oblong, but not all oblong objects can be described as oval. Other words used to describe oval shapes are elliptical and ellipsoidal.\nOblong objects can be elongated circles, such as ovals, but can also be elongated squares. A second definition of oblong is "in the form of a rectangle one of whose dimensions is greater than the other."

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What shape has 10 sides?

There are several types of decagons. An equilateral decagon is a decagon with equal length sides while an equiangular decagon has equal angles. A regular decagon has equal angles of 144 degrees each and sides of the same length. If the sides or angles are not equal, then the decagon is irregular. If none of the internal angles are greater than 180 degrees, then it is a convex decagon. If at least one angle is greater than 180 degrees, then the decagon is convex.

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What are some things that come in groups of 11?

In soccer, there is an even 10 players on each side who freely move around the field. The extra player on each team is the goalkeeper, who serves as the last line of defense against scoring attempts.\nWalter Camp, who introduced many of the rules of American football, established 11-player teams. He envisioned seven players in the offensive line and four in the back, including the quarterback.\nCommercial products are very seldom sold in groups of 11 because the number is one more than 10 and one less than a dozen, or 12. Products sold by the dozen can be packed in three rows of four or two ro..

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What are some good math games?

Clumsy Thief is an entertaining card game that teaches children to use addition in a fun way. Some reviewers say that their kids are having so much fun that they don't even realize that they are doing math. ThinkFun Math Dice Jr. is another fun way for children to learn addition and subtraction while playing a game. ThinkFun Math Dice Jr. has an overall rating of 4.6 out of five stars as rated by 188 users.

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What are some real life examples of probability?

In the case of a coin toss, the probability that it will land with the "heads" side up is 50 percent. Therefore, the coin will probably land "tails" up 50 percent of the time as well.\nThe probability of seven dots being displayed when a pair of dice is thrown is calculated by the number of possible combinations that will equal seven. Two six-sided dice have six possible combinations, which add up to seven. This makes the probability of rolling a seven much higher than that of rolling a two or a 12. In exact terms, the probability of throwing a seven is 16.67 percent, whereas the chance of rol..

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What does "evaluate" mean in math?

"Evaluate" is fairly synonymous with "solve" when used in mathematics. An example of wording is, "Evaluate the cost of six tomatoes when the tomatoes are priced at $2 each." This is a simple multiplication problem where the student would multiply 6 by 2 for an answer of $12. The word evaluate may also appear before a series of questions, such as a list of simple algebraic equations.

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