Ma poate ajuta cineva la acesta problema: pe o drepta g considerati punctele D, R, P si T coliniare in aceasta ordine astfel incat DR=PT=3 cm, iar RP=4cm

Givens

and

Points D, R, P and T are collinear.

The image attached shows a representation of this problem.

By sum of segments, we have

Replacing all given values, we have

Therefore, the segment DT is 10 centimeters long.

Now, we know that point E is the center of segment RP, which means is a middle point, divides the segment equally. So, to prove that segment DT is symmetrical regarding point E, we need to prove that both sides are equal.

, by definition of middle point.

By sum of segments, we have

Which means .

Therefore, segment DT is symmetrical regarding point E.

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step-by-step explanation: