Polygon Riddle 2

A Maths Starter of The Day

My first is in shape but not in space;
My second is in line and also in place;
My third is in point but not in line;
My fourth in operation but not in sign;
My fifth is in angle but not in degree;
My sixth is in glide but not symmetry;
My seventh in round but not in square;
My last is in patterns you see everywhere;
My whole is a polygon, regular not wide;
But what is the sum of the angles inside?

 

Hint: split the shape into triangles

 

 

Starter of The Day Menu | Transum Software | Privacy Policy


Keywords: Starter | Riddles | Shape

  • Hayley Roberts, Gloucestershire
  • Saturday, July 28, 2007
  • "The last line of the riddle asks what is the total of the inside angles of the polygon and the answer states 900 degrees. I do not believe this to be correct as the total of the internal angles of any polygon only add up to 360 degrees."
  • Tracey Roden, ICC
  • Sunday, August 24, 2008
  • "I thought it was the EXTERNAL angles of a polygon which total 360! Think triangle - the internal angles add up to 180!!"
  • Doyle,
  • Friday, November 19, 2010
  • "The exterior angles sum to 360
    and the interior angles depends on how many sides the shape has,
    a heptagon has 7 sides and therefore it can be split into 5 triangles
    a triangle has 180 degrees, so 180*5 = 900."

How did you use this starter? Can you suggest how teachers could present or develop this resource? Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for Maths teachers anywhere in the world.
Click here to enter your comments.

If you don't have the time to provide feedback we'd really appreciate it if you could give this page a score! We are constantly improving and adding to these starters so it would be really helpful to know which ones are most useful. Simply click on a button below:

Excellent, I would like to see more like this
Good, achieved the results I required
Satisfactory
Didn't really capture the interest of the students
Not for me! I wouldn't use this type of activity.

This starter has scored a mean of 3.1 out of 5 based on 20 votes.

 

Previous Day | This starter is for 28 July | Next Day


Transum Shop Visit the Transum Online Shop Transum Shop
Transum Shop

Answer

Heptagon 900°