Question

The picture below shows a triangular coffee table ABC.
http://go.flvs.net/courses/1/flvs_57_3641_12419/ppg/respondus/pool_Geom_3641_0400_Subtest_04_20/image0044e2d7a93.jpg
A carpenter plans to make two small triangular tables by cutting the big table along the line AD. What will be the length of the side DC of the table ADC?
A) 43.9 cm
B) 60.5 cm
C) 69.4 cm
D) 104.2 cm

Answer 1

Is that link for your school website? I'm not sure that it works for others...

Answer 2

Here it is.. Sorry

Answer 3

I think it's A

Answer 4

1. sin(ACD)=AB/AC =>AB=120*0.5=60
2. BD=AB=60 (since the angle ADB is 45 degrees)
3. DC=BC-BD=43.9

Answer 5

Thanks!