5. Mark these co-ordinates on a grid: (1, 2), (5, 4), (6, 1). Now use your ruler to draw lines to join the co-ordinates and make a triangle. Design triangles of your own by plotting co-ordinates and drawing them on a grid.


6. How many co-ordinates would you need to plot to create a quadrilateral?


7. Plot the following co-ordinates on a grid. What shapes have you created when you join the dots? a) (2, 1), (2, 4), (5, 4), (5, 1)


b) (7, 3), (10, 3), (10, 7), (7, 7) c) (2, 10), (6, 10), (1, 7), (5, 7)


Homework


1. Match these labels to the letters on the circle. radius


circumference B C A


A = B = C =


2. Using your compasses, construct circles with the following radii. a) 4cm


b) 6cm b) 10cm c) 2.5cm c) 9cm d) 1.5cm d) 11cm diameter


e) 3.5cm


3. Using your compasses, construct circles with the following diameters. a) 7cm


e) 8cm


4. Now use a piece of string to measure the circumferences of the circles you constructed in questions 2 and 3. In each case, divide the circumference by the diameter of that circle. Compare your answers.


5. a) Write the letters of your name in capital letters. How many of the letters in your name are symmetrical?


b) Now try it for each of the names of the people in your family. Who has the most symmetrical letters in their name?


6. Using this font type, why is your MUM symmetrical but your DAD isn’t? 2-D Shapes 2 99


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