Respuesta :
The side ED is a midsegment of the triangle ΔABC, therefore, the length of
ED is half the length of AB.
[tex]\displaystyle The \ expression \ that \ represent \ the \ value \ of \ s \ is; \ s = \frac{1}{2} \cdot u[/tex]
- s = one half u
Reasons:
The given parameters are;
In ΔABC, point E is the midpoint of AC
The midpoint of BC is the point D
Segment ED = s
Segment CE = p
Segment EA = r
Segment CD = q
Segment DB = t
Segment ED = s
Segment AB = u
Required;
The expression that represents the value of s
Solution:
CE = 0.5 × AC Definition of midpoint
CD = 0.5 × CB Definition of midpoint
Therefore;
Therefore, we have;
[tex]\displaystyle \frac{CE}{AC} = \mathbf{\frac{CD}{CB}} = 0.5[/tex]
Therefore, given that ∠C ≅ ∠C, by reflexive property, we have;
ΔABC is similar to ΔCDE by Side-Angle-Side similarity
Which gives;
[tex]\displaystyle \frac{CE}{AC} = \frac{CD}{CB} = \mathbf{\frac{ED}{AB} } = 0.5 = \frac{1}{2}[/tex]
ED = s and AB = u which gives;
[tex]\displaystyle \frac{ED}{AB} =\frac{s}{u} = 0.5 = \frac{1}{2}[/tex]
[tex]\displaystyle \frac{s}{u} = \frac{1}{2}[/tex]
Which gives;
[tex]\displaystyle s = \mathbf{ \frac{1}{2} \times u}[/tex]
(The above relationship is given by the midsegment theorem)
Therefore;
The expression that represents the value of s is; s = one half u
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