Answer:
r=3 ft
Step-by-step explanation:
it is similarity of two triangles
one
perpendicular side=10 ft
base=10/2=5 ft
second
perpendicular side=10-4=6 ft
Base r=?
![\frac{r}{5}=\frac{6}{10}\\r= \frac{6}{10} \times 5=3~ft](https://tex.z-dn.net/?f=%5Cfrac%7Br%7D%7B5%7D%3D%5Cfrac%7B6%7D%7B10%7D%5C%5Cr%3D%20%5Cfrac%7B6%7D%7B10%7D%20%5Ctimes%205%3D3~ft)
One specific triangle CAN be made with those angles because of the 180 degree total.
When angles are restricted to real numbers, Bernhard is correct. The sine function has a range of -1 to 1 (inclusive).
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When angles are allowed to be complex numbers, the magnitude of the sine of an angle may exceed 1. In this realm, both Henrik and Bernhard are incorrect.