40cm
45cm
Calculate the distance around this shape. All angles are right angles but the diagram is not drawn to scale.
Topics: Starter  Geometry  Mensuration
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If all of the vertical edges are the same length and all of the horizontal edges are the same length, what is the area of the shape?
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Teacher, do your students have access to computers such as tablets, iPads or Laptops? This page was really designed for projection on a whiteboard but if you really want the students to have access to it here is a concise URL for a version of this page without the comments: Transum.org/go/?Start=February9 However it would be better to assign one of the student interactive activities below. 

Here is the URL which will take them to a related student activity.
Transum.org/go/?to=areacomposite
See the National Curriculum page for links to related online activities and resources.