Applied Mathematics

Created by:Alex Miller

Texas Rangerand, yours truly, Slade Smith

Operations• Addition: examples; 1+1=2, 4+7=11• Subtraction: examples; 6-2=4, 8-5=3• Multiplication: examples; 2x8=16, 9x1=9• Division: examples; 27/9=3, 30/3=10

Fractions, Decimals, and Percentages

• ¼=.25=25%• 1/10=.1=10%• 3/6=.5=50%• 1/1=1=100%

Geometry• A square has 4 equal sides with 90 degree angles• A triangle has 3 sides and can have varying

angles• A circle has no sides and round

Trigonometry• Functions include Sine, Cosine, Tangent,

Cosecant, Secant, and Cotangent.• Used to find/analyze lengths and degrees.• ((A^2)+(B^2))=(C^2)

Weight• Weight=M(mass)xGravity• Weight is the force an object applies solely due to

gravity.

Measurements• 1 mile=5280 feet or 1.609344 kilometers• 1 pound=453.592 grams• 1 kilometer=1000 meters• 1 meter=100 centimeters• 1 centimeter=10 millimeters

Area• Area is the amount of 2 dimensional space.• Area of a rectangle=length times height• Area of a circle=pi times (radius^2)

Volume• Volume is the measure of 3 dimensional space an

object occupies.• Volume of a rectangle is calculated by length

times width times height.• Volume of a sphere is four-thirds times pi times

the radius cubed.

Scales• Scales are in the form of ratios.• Example; 1”=5’

o This means, for every 1 inch measured on the model/drawing, that represents 5 feet in reality.

Pitch• Pitch is a measurement of steepness.• It may also be called:

o Gradiento Inclineo Angleo Slope

Rise, Run, and Slope• Rise is the amount of vertical change between

two points.• Run is the amount of horizontal change between

two points.• Slope is the change in two points based upon the

rise and run.

Practice• 1) What is the length of leg A if leg B is 3 and the

Hypotenuse is 5?• 2) Interpret the following: 1/16”=1’• 3) What is the area of a rectangle with sides

equal to 7 and 9?• 4) If the area of a circle is 10, what is the radius

of said circle?• 5) Find the volume of a sphere with a radius of .3

Practice• 6) What is the slope increment of a rise of 3 and a

run of 2?• 7) What does pitch measure?• 8) Convert 5123 centimeters to kilometers• 9) True or False: a scale is used to measure

weight• 10) What is the perimeter 1x1 square?

Answers• 1) 4• 2) Every 1/16” on a model represents 1’ in full

scale• 3) 63• 4) 1.784124116• 5) .1130973355• 6) 1.5 per unit run• 7) Steepness• 8) .05123km• 9) false• 10) 4