Answer:
Short = 5
Step-by-step explanation:
The ratio of sides of a 30°-60°-90° right triangle is ...
1 : √3 : 2
That is, the hypotenuse is twice the length of the short side, and the long side is √3 times the length of the short side.
Then the short side is 1/2 the length of the hypotenuse.
For the given triangle, Short = (1/2)×10 = 5.
