8.8k views
1 vote
Polygon ABCDE rotates 45° clockwise about point F to produce polygon FGHIJ as shown. What is mBCD?

1 Answer

5 votes
The order of letters is important.
Since polygon ABCDE is rotated to produce polygon FGHIJ, then image of A is F, image of B is G, and so on.
And since rotation preserves the shape, then
m∠BCD = m∠GHI = 127°
User Paul Dubs
by
7.1k points