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Friday's Instructional Review of Drawing Angles

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Make sure you have paper, pencil, and your protractor and then watch this video.

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are you good morning 4th graders this is your video for Friday that says on your checklist it says review video practice drawing angle so what we're going to do here is I'm going to draw a few angles with you using your protractor and then I'm going to give you a couple of angles to draw on your own and if you're able I'm hoping that you can send me pictures of the angles that you dropped it have to be perfect if you don't have your protractor a pencil and paper you should pause the video and grab that you need your protractor if you need a pencil and you need some kind of blank or lying Pig first angle we're going to draw is going to be an acute angle to remember acute angles are fewer than 90° are you and we're going to make this angles 47 degrees angle are QT 47 so remember when we were trying the angle ourselves the first thing we do is we use our protractor to make a straight side of the angle vertical or horizontal that's up to you start with a side that's pretty horizontal so I'm just going to use the bottom of my protractor to create a straight angle and then I need to pick one side or the other the vertex of the angle protractor on top is my bird text tractor is an iguana I'm going to have the Side Restaurant coming out in 00 I'm looking to see which scale I'm using outer scale the outside numbers I'm going to use that outer scale to find 40700 10 20 30 40 50 I want 47 so I'm going to find 45 Fierce 45 right in the middle then I'm going to count to degrees over the 4647 stop right there I said it. To mark 47 micro tractors with straight edge again do you want to make these line segments you want to make a rose put your curve to show where you measure and then you do need to label it with the letters to remember the middle letter is going to be over text so I have to put the key to hear the are in the TV can go on either side 47 degrees angle are two TV could also be called angle T2 are the angles to Silver new angle obtuse angle remember obtuse means it's going to be greater than 90 but less than 180 so more open than a right angle but not all the way open to a straight 121° is 121° angle a 121 yourself you have to start by giving it its first side using a protractor the straight edge diagonal here one side play I'm going to put my birth text here and then I'm going to line up the protractor where the key goes on the vortec this size going to come out hi line it up I'm using the interstate because my zeros on the interstate so now I'm going to swallow that inner scale all the way around till I get to 121 so I see a hundred there's a hundred a hundred times years 120 I want 121 I'm going to go a tiny bit past the 120 and put it. And then use my protractor is a straight edge again how to draw the second side this time I think I'm just going to leave on this line segment and label so angle ABC is the Middle East angle ABC 121 degrees an obtuse angle all right one reflex angles is an angle is greater than 180° so I'm going to make this angle x y z and I think I'm going to make it two hundred ninety-five degrees angle XYZ 295 degrees remember with reflex are a little tricky because we don't have a protractor that goes all the way to 295 are protractor go to 180 so this is where we use what we know about circle circle so we're going to ask yourself how close to a full circle is to how many degrees is it sort of a circle and we figured that out by subtracting from the subtract 95 from 360 can I get six is 65 degrees less than a full circle so I want to have a full circle - 65 degrees when I drive the weight of a drive is like when were measuring we have to use the acute angle to get the reflex angle we're going to do the same thing we're going to draw a 65 degree angle and then you decide to create our reflex angles start by doing one side of the angle fibertex here going to draw the 65 degree angle surround minded up here Zero's on the outer scale in a followed around till I get to 65 there it is Xanax what I've drawn is not my reflex angle 295 I've drawn 65° I've drawn the part that I don't want to be a part of this angle so now all I need to do to install a 5 degree angle is Marquis outside with her like that stay out here is 295 I know that because the full thing would be 360 360 - but I drew is going to give me 295 still need to label it with letters why is the middle so that's the vertex NRC alright okay so that was a couple that you did with me I'm going to give you two more that I want you to try on your own do your best and then if you're able to snap a quick picture and just send them to me via email Ask Jeeves and we'll make it a let's do a 72 degree angle triangle MN and let's make it a 100 degree angle to angle to try on your own 72 degrees is an acute angle and 152 make sure you label them with the letters give me a protractor use the protractor The Straight Edge so they look nice and neat and if you're able to go ahead and send me a quick picture and I'll give it a quick

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Friday's Instructional Review of Drawing Angles

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