The area of a regular octagon is made of how many congruent triangles?

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Accepted Answer

1. Draw lines from the centre to each vertex.
2. This splits the octagon into **8** identical isosceles triangles.
3. Each triangle has the same base and the same vertex angle $360^\circ/8=45^\circ$.
4. So the area is made of $8$ congruent triangles.

FINAL_ANSWER: c

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Answer

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