Mathematics
Grade9
Easy
Question
The length of the side CD of a regular octagon ABCDEFGH is ______.
- 2 cm
- 5 cm
- 12 cm
- 6 cm
Hint:
The interior angle at each vertex of a regular octagon is 135°.
The correct answer is: 6 cm
Octagon is a polygon that has 8 sides and 8 angles
regular octagon has eight equal sides and eight equal angles
so All the sides of a regular Octagon are equal.
So, CD = 6 cm.
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