Taylor 4th Blog Review

REVIEW TIME!!!!

In the following lesson I shall be informing you on part of lesson 7.1 of my Advanced Math class.

There are two units of measure for angles. They are degrees and radians.

If you want to convert degrees to radians you must use the following formula.

degrees x PI/180

An example of this would be the following problem.

Convert 25 degrees to radians.

25 degrees x PI/180 1st. Place the degrees ,25, into its proper location in the equation.

25PI/180 You will then multiply 25 degrees and PI/180, or 25 X PI to get this answer.

5PI/36 You will then divide 180 into 25,or reduce, and put it in a fraction form. This is your answer.


IMPORTANT NOTE: PI IS LIKE X A VARIABLE SO DON'T PUT IT INTO YOUR CALCULATOR OR YOU WILL GET THE WRONG ANSWER!



If you want to convert radians to degrees you would use this formula.

rads x 180/PI


An example of this equation has been given.

Convert 20PI to degrees.

20PI X 180/PI First place your radians into its proper place in the equation.

20P/I X `180/P/I Since 20PI and 180/PI both have PI and one is in the lower part of the fraction and the other is in the upper part of the fraction. We can cancel out PI in the equation.

20 X 180 You will then multiply 20 times 180.

3600 degrees This is what your answer should be.

IMPORTANT NOTE: MAKE SURE TO PUT THE DEGREES MARK OR IT WILL BE WRONG!!


That is all the equations, formula and information that we learned in the first part of section 7.1. Until my next blog BYE.