Perimeter

Try the activity from the website below. (You might want to try some questions while the site is loading as it sometimes takes a long time) 2D Shapes Now attempt the questions below. 1. Calculate the perimeter of each of the following figures. All measurements are in metres unless indicated otherwise.  2. Calculate the circumference of the following circles giving all answers correct to 3 significant figures.  3. A pentagon is made by placing an equilateral triangle on top of a rectangle. What is the perimeter of the pentagon?  4. A hexagon is made by joining four isosceles triangles as shown in the diagram. What is the perimeter of the hexagon?  5. a) A farmer has a paddock 450m long and 255m wide. Calculate the perimeter of this paddock. b) How much would it cost to fence this paddock at 50c per metre. 6. A jogger runs around a rectangular park that is 420m long and 95m wide. How far will he jog if he runs around the park 10 times? 7. The wheel of a steamroller has a diameter of 2.5m How far will the steamroller move if this wheel makes one revolution (give your answer correct to 1decimal place)? 8. The diameter of a car wheel is 35 cm. How many complete revolutions will this wheel need to make to travel 1km? (Hint: keep all units of length the same) <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Try the activity from the website below. <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Perimeter <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Here are some extension questions for fast finishers. <span style="color: #000080; font-family: 'Comic Sans MS',cursive; font-size: 150%;">9. Use Pythagoras' theorem to calculate the value of //x// and then calculate the perimeter. <span style="font-family: 'Comic Sans MS',cursive;"> <span style="color: #008000; font-family: 'Comic Sans MS',cursive; font-size: 150%;">10. The rhombus shown is made from four identical right-angled triangles. What is its perimeter? <span style="font-family: 'Comic Sans MS',cursive;"> <span style="color: #000080; font-family: 'Comic Sans MS',cursive; font-size: 150%;">11. A rhombus has diagonals that are 14.4cm and 19.2cm long. What is its perimeter?
 * __<span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;">Perimeter __** <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 150%; text-align: center;">Open this file and save it to your laptop for the notes on today's lesson.