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natita [175]
3 years ago
13

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.
Mathematics
2 answers:
umka21 [38]3 years ago
8 0

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.

ycow [4]3 years ago
4 0
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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