Youtube
Perimeter of composite figures - https://youtu.be/-8WiHyC2WS8
Teacher Workshop https://docs.google.com/presentation/d/1zGIbQsUkSWL8NDhtq66PY8-yTpUtTyRD1RhQkLmPo5E/edit?usp=sharing
Worksheet https://docs.google.com/document/d/1vSfy7O7ZNStVZWU4XOBHiuFeaZYskoWivqELui3Bs2Y/edit?usp=sharing
Answer
Maths Online activities
5140 Perimeter - http://www.mathsonline.com.au/r.html?lesson=5140
5142 Circumference of a circle - http://www.mathsonline.com.au/r.html?lesson=5142
5144 Perimeter of a sector - http://www.mathsonline.com.au/r.html?lesson=5144
Extension
http://nrich.maths.org/11119
