Hint: split the shape into triangles
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"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." Hayley Roberts, Gloucestershire
"I thought it was the EXTERNAL angles of a polygon which total 360! Think triangle - the internal angles add up to 180!!" Tracey Roden, ICC
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Keywords: Starter
| Riddles
| Shape
Saturday, July 28, 2007
Sunday, August 24, 2008
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 3.0 out of 5 based on 15 votes.
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Heptagon 900°