1. The rules of a polygon are that it has at least three strait sides/lines, the Shape must be closed, the shape may not overlap, and it must have at least three vertex's.
2. a) It tells you how much rotation it's done from a full 360degree rotation. For EX. if Tony Hawk said he was gonna do a 360n that means he's gonna do the full rotation, if he says he's gonna do a 720 that means he's gonna do two full rotations.
b)Some of the common benchmark angles are 45, 90, 135, 180, 225, 270, 315. A benchmark angle is an angle that can be used as reference for other angles.
3. In Geometry to find the measurement of a right angle triangle you use something that is called hypotenuse. If you are not doing a right angle triangle you could estimate the amount of degrees the angle is with benchmark angles.
To find an accurate angle measurement a lot of people use protractors. Protractors are shaped as half of a circle or 180degrees. To use a protractor to measure an angle you must first notice that at the bottom of the protractor where there's a strait line going from one end to the other you should notice that in the middle there is a small dot or whole, that's where you'll be placing tour vertex.After your vertex is on the dot or whole make sure that one of the lines is perfectly alined with the one on the protractor and points or keeps going the same way the zero is. Then carefully measure you're angle with the other line.
Clara, you have done a nice job of incorporating math vocabulary and your post is easy to read. For #3, you should go back and take a look at the question, you have addressed one of the parts (protractor) really nicely, but have not mentioned much about the other ways to find the size of an angle.
ReplyDelete