Answer:
D, C, B, A
Explanation:
You want to know the steps in order for constructing a triangle with sides 10, 5, and 7 cm in length.
Steps
You can order the steps by the number of lines/arcs in the drawing of the step:
D. one line drawn
C. that line and one arc drawn
B. that line and 2 arcs drawn
A. the entire triangle drawn
The order is DCBA.
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Additional comment
It can be useful to pretend you are the one constructing the triangle. You might imagine how you would go about doing it.
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