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SAT Prep in Dr. Phillips, Florida

09/21/2015

Math Help: Useful Formulas to Know

Knowing these math formulas by heart will come in handy as you advance in your math classes.

Average Speed

To find the average speed, use the formula distance over time.

Rectangle Formulas

Area=lw l is the length and w is the width. Multiply them together to find the area of a rectangle. Perimeter=2l+2w Double the length of each side and add the results together to calculate the perimeter. Volume=lwh h is the height of the rectangle. Multiply length, width, and height to find the volume.

Parallelogram

To find the area of a parallelogram, drop two right triangles to determine the heights and turn the parallelogram into a rectangle.

Pythagorean Theorem

For any right triangle, the length of the hypotenuse (c) squared is equal to the sum of the squares of the two shorter sides (a and b).

Distance Formula

If you know your Pythagorean theorem , this equation will be intuitive. To determine the distance between two points, you can make a right triangle from them. square each side and then take the square root of the sum to obtain the length of the hypotenuse.

Quadratic Formula

Solve any quadratic equation in the form ax^2+bx+c=0 with this formula. For those formulas that are difficult to find the difference of squares, or if you are in a rush on an exam, the quadratic formula will be very nice to know.

For Tutoring in Dr. Phillips

Contact The Tutoring Center in Dr. Phillips for additional help in math, reading, writing, and more. Our one-to-one tutoring programs ensure that you receive the individualized attention you need to succeed. You can find out more information from our webpage, but you should call (407) 286-2389 now to schedule a free diagnostic assessment.  

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