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How do you use geometry in daily life?

People commonly use geometry area problems when working on their homes. Area problems help them decide how much carpet or paint to buy and even which furniture will work in a given space. Likewise, decorating a room or an outdoor area takes spatial reasoning and an arrangement of geometric shapes.\nVolume problems are another daily-life use of geometry. People use volume equations to determine how much water goes in a fish tank, how much sand is needed for a sandbox or even how much soil is needed for a window garden.\nElements of plane geometry, or the relationship of two-dimensional shapes o..

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What is a 90-degree turn?

A circle contains 360 degrees. If a person imagines himself standing in the middle of a clock and facing the 12 o'clock position and then turning to the right to face the 3 o'clock position or to the left to face the 9 o'clock position, he has made a 90-degree turn, which is one-quarter of a complete circle. If he again faces the 12 o'clock position and turns either to the right or to the left to face the 6 o'clock position, he has made a 180 degree turn, which is half of a complete circle. If he returns to the 12 o'clock position and turns to the right to face th..

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What is a good way to make pie charts easily?

Pie chart programs require the desired data category's label and its desired size on the pie chart, either as an absolute number or percentage. This number or percentage is then adjusted in apparent size in the chart relative to the other listed data categories when the program produces the chart.\nMicrosoft Office's Excel program creates pie charts in a manner allowing more manual control over the appearance and data of the chart without much difficulty. Simply enter the chart's desired data into the worksheet cells and insert a pie chart from the Insert ribbon at the top of th..

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Where can you find an accurate fabric yardage calculator?

Wesco offers four different categories: drapery, shade/topper, bedding and pillow. Within each category are calculators for different styles such as Australian shades, cornices, pinch pleated panel drapery and duvet with or without a welt. Sailrite offers a few more categories such as umbrellas and awnings. Included in each Sailrite calculator are visual guides for appropriate measurement.

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Where can you take a course in problem solving?

This course aims to improve people's creativity and use of critical thinking skills to make better decisions. Participants learn thinking processes that they can apply to common situations at work and at home.\n\nWorkshop activities include stimulation of creativity through reflections and analysis of the different hemispheres of the brain. Improvements in participants' critical thinking and creative problem solving skills can enhance leadership abilities and increase potential for career growth and satisfaction.

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What is the value of pi to 100 or more decimal places?

Pi is a constant that represents the ratio of a circle's circumference to its diameter. Despite the constant being a ratio, it is irrational, and, therefore, a non-repeating number. It has a limitless number of decimals. As of October 2011, a Japanese mathematician and systems engineer, Shigeru Kondo, calculated pi out to its first 10 trillion digits. This broke a previous world record of 5 trillion digits calculated by Kondo just one year earlier.

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What are polynomials used for?

Polynomials are so old that their date of invention is unknown; examples have been found dating back to ancient Greek and Chinese mathematical problems. Modern algebraic notation and polynomials as they are written today date to the 16th century, when the first known use of the equal sign is attributed to Welsh mathematician Robert Recorde. The first known graph of a polynomial equation is from 1637 and was created by the famous French philosopher and mathematician Rene Descartes. Descartes is also credited with assigning the letters still used today for constants and variables, and for invent..

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How do you plot data on a map?

The Cartesian coordinate system is an incredibly popular coordinate system for plotting data. For two-dimensions, it usually involves x and y, and for three, the z dimension is usually included as well. Each point's location is identified by the distance in each of these directions, and usually formatted in parentheses with the numbers divided by commas. A point of (3,4) is three units in the x direction and 4 in the y direction, starting from the point (0,0).\nOn a world map, points are located using latitude and longitude. The Prime Meridian is the 0 degree line lengthwise on the Earth,..

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What is a 90 percent confidence interval?

Information from a sample population is used to compute the endpoints of the interval. A large population consists of a sample size of observations that is greater than 30. For example, a sample of 121 observations with a standard deviation of 20 and an average of 50 has a 90 percent confidence interval for the true population average.

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Is a square always, sometimes or never a rhombus?

To be considered a square, a shape must have two pairs of parallel lines, four right angles and four equal sides. A rhombus does not require four equal angles to be considered a rhombus, but only rhombuses that have four equal 90 degree angles can be considered squares.\nRhombuses and squares are both types of parallelograms. A parallelogram is defined as any figure with two sets of parallel lines.

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