ABCDEFGH is a regular octagon. The minimum degree of rotation by which this octagon can map onto itself is °. It will take incre
ments of that degree of clockwise rotation for A′ (the image of A) to coincide with C.
2 answers:
Answer:
Step-by-step explanation:
ABCDEFGH is a regular octagon. The minimum degree of rotation by which this octagon can map onto itself is °.
Since it is a regular octagon, rotation can be done about the centre to the angle.
The central angle subtended by each side to the centre is 360/8 = 45 degrees.
Hence A will become B when rotated about 45 degrees.
Thus rotation requires 45 degrees abut the center.
The minimum degrees to map onto itself is 360/5 = 45 degrees.
It will take 2 increments for A' to coincide with C.
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