When two parallel lines are crossed by a third line, called a transverse, there are a couple of special relationships which occur with the angles around those lines.
Today we are going to be looking at these relationships. The relationships aren't that tricky, but the terminology can be so today we are going to be adding to our Space and Geometry Visual Dictionary. All of the terms that we cover below need to be included in your dictionary. Remember you need the word, the definition and an accurate picture.
Today we are going to be looking at these relationships. The relationships aren't that tricky, but the terminology can be so today we are going to be adding to our Space and Geometry Visual Dictionary. All of the terms that we cover below need to be included in your dictionary. Remember you need the word, the definition and an accurate picture.
Co-interior Angles (C angles)
Co-interior angles are the two angles which are inside the parallel lines, on the same side of the transverse. The two angles make a 'C' shape. The two angles inside the 'C' or the co-interior angles add up to 180º.
HERE is an interactive where you can see that the value of these two angles will always equal 180º. Once you are confident that you can identify these angles, test your speed at identifying them HERE.
Once you are ready, complete the worksheet in your maths book (title 'Co-interior angles). You do not need to draw the picture if you don't want to, you can just write the answer. Click HERE to get the worksheet.
Co-interior angles are the two angles which are inside the parallel lines, on the same side of the transverse. The two angles make a 'C' shape. The two angles inside the 'C' or the co-interior angles add up to 180º.
HERE is an interactive where you can see that the value of these two angles will always equal 180º. Once you are confident that you can identify these angles, test your speed at identifying them HERE.
Once you are ready, complete the worksheet in your maths book (title 'Co-interior angles). You do not need to draw the picture if you don't want to, you can just write the answer. Click HERE to get the worksheet.
Corresponding Angles (F angles)
Corresponding angles are the two angles which are on the parallel lines. The two angles make an 'F' shape. The two angles inside the 'F' or the corresponding angles have the same value (eg if one angle is 71º its corresponding angle will be 71º. HERE is an interactive where you can see that the value of these two angles will always be the same. Once you are confident that you can identify these angles, test your speed at identifying them HERE. Once you are ready, complete the worksheet in your maths book (title 'Corresponding angles). You do not need to draw the picture if you don't want to, you can just write the answer. Click HERE to get the worksheet. |
Alternate Angles (Z angles)
Corresponding angles are the two angles which are on the opposite side of the transverse, tucked into the opposite corners. The two angles make an 'Z' shape. The two angles inside the 'Z' or the alternate angles have the same value (eg if one angle is 71º its alternate angle will be 71º.
HERE is an interactive where you can see that the value of these two angles will always be the same. Once you are confident that you can identify these angles, test your speed at identifying them HERE.
Once you are ready, complete the worksheet in your maths book (title 'Alternate angles). You do not need to draw the picture if you don't want to, you can just write the answer.
Click HERE to get the worksheet.
Corresponding angles are the two angles which are on the opposite side of the transverse, tucked into the opposite corners. The two angles make an 'Z' shape. The two angles inside the 'Z' or the alternate angles have the same value (eg if one angle is 71º its alternate angle will be 71º.
HERE is an interactive where you can see that the value of these two angles will always be the same. Once you are confident that you can identify these angles, test your speed at identifying them HERE.
Once you are ready, complete the worksheet in your maths book (title 'Alternate angles). You do not need to draw the picture if you don't want to, you can just write the answer.
Click HERE to get the worksheet.
Once you have finished this, if you are confident, come and see one of your teachers and we will give the the extension work, if you would like a fun way to review these ideas click HERE to access a game.
Today your first job is to INDEPENDENTLY complete a quick check-in quiz so we can see how everyone is going. You need to click on THIS link, and complete the quiz by yourself. There is no time limit, so please take your time, think sensibly and USE A CALCULATOR...no silly errors.
Once you are done you need to complete THIS set of task cards, they combine all the different types of angle into one set of questions. Good Luck!
Once you are done you need to complete THIS set of task cards, they combine all the different types of angle into one set of questions. Good Luck!