Three points B, C and C lie on one straight line, BC = 172cm, DC = 25cm. How long can BC be?
January 31, 2021 | education
| Let us assume that the extreme points of the line are B and C.
In this case, point D will lie between them.
In order to determine the length BD, it is necessary to subtract the value of the length DC from the length BC.
We get:
172 – 25 = 147 cm.
Suppose that the endpoints of the line are D and B.
In this case, point C will lie between them.
So the length BD will be:
172 + 25 = 197 cm.
Answer: The length of the segment DB can be equal to 147 or 197 cm.
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