# Math and Arithmetic

## Math is the study of abstractions. Math allows us to isolate one or a few features such as the number, shape or direction of some kind of object. Then we can study what can be learned about the behavior of those features while ignoring everything else about the object.

###### Asked in Math and Arithmetic, Algebra, Geometry

### How do you use a right angle to decide how to name another angle?

You use the right angle next to an acute angle perhaps and you see that when a angle is closer together it is an acute angle and if it is spread apart or farther apart from a right angle it is an obtuse angle. If the angle is a straight line and doesn't look bent like a right angle it is a straight angle.

###### Asked in Math and Arithmetic, Algebra, Geometry

### How do you find the base of a regular pyramid when you have the perimeter and the slant height?

The slant height doesn't help you get the answer.
Apart from the perimeter, you would need SOME other information about the base; either the number of sides, or anything that can help you calculate the number of sides.
For example, if the base is a regular pentagon, you divide the perimeter by 5, and then use the formula for a regular pentagon, to calculate the base.

###### Asked in Science, Math and Arithmetic, Interior Design, Fashion Design

### What is interior designing?

Interior design is the art and science of enhancing the interior of a building to achieve a healthier and more aesthetically pleasing environment for the people using the space. An interior designer is someone who plans, researches, coordinates, and manages such enhancement projects. Interior design is a multifaceted profession that includes conceptual development, space planning, site inspections, programming, research, communicating with the stakeholders of a project, construction management, and execution of the design.

###### Asked in Math and Arithmetic

### How thick is 250 mil?

###### Asked in Math and Arithmetic, Algebra, Geometry

### How is the angle of magnetic declination measured?

You need to determine the geographic north, for example by observing sunrise and sunset; by observing the stars; or by using a compass that reacts to Earth's rotation (a gyrocompass).
Then you observe where the needle of a magnetic compass points.
Finally, you measure the angular difference between the two.

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