A
B
21
48°
6x-24
D
[?] << <[ ]
11
C
![A B 21 48° 6x-24 D [?] << <[ ] 11 C class=](https://us-static.z-dn.net/files/ddd/8d5d19eb1ecb6df0d6535da737369b39.png)
The shape in the figure is a composite shape with two triangles, and the inequality is 4 < x < 12
In the given figure, the side lengths AB and AD are equivalent.
This means that, we have the following angle relationship:
CAD < CAB
Substitute known values
6x - 24 < 48
Add 24 to both sides
6x < 72
Divide both sides by 6
x < 12
Also, we have the following angle relationship:
CAD > 0
Substitute known values
6x - 24 > 0
Add 24 to both sides
6x < 24
Divide both sides by 6
x < 4
This means that:
x < 4 and x < 12
Combine both inequalities
4 < x < 12
Hence, the inequality is 4 < x < 12
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