Aboard 83 inches long is to be cut into three pieces for framing. the longest piece must be twice the length of the middle-sized piece, and the shortest piece must be 21 inches shorter than the middle-sized piece. write an equation to find the length of each of the three pieces

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.