Respuesta :
The length of DE from the diagram is 16.2 units
Find the diagram attached.
Using the similarity theorem of triangles, the required expression will bee:
- 5/9 = 9/2x + 3
Cross multiply
9*9 = 5(2x + 3)
81 = 5(2x + 3)
Expand the parenthesis using the distributive law:
81 = 5(2x) + 5(3)
81 = 10x + 15
Subtract 15 from both sides
81 - 15 = 10x + 15 - 15
66 = 10x
x = 66/10
x = 6.6
Get the length of DE.
DE = 2x + 3
DE = 2(6.6) + 3
DE = 13.2 + 3
DE = 16.2 units
Hence the length of DE from the diagram is 16.2 units
Learn more on similarity theorem of shapes here: https://brainly.com/question/21247688
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Answer:
X= 6.6
Length of DE = 16.2
Step-by-step explanation:
E2020 Geometry B!!