When the length of each leg is 3
units, the ratio of the hypotenuse
to the leg is:

  √2

Step-by-step explanation:

The ratio of the hypotenuse to the leg in any isosceles right triangle is √2.

Perhaps you want to figure the hypotenuse, then compute the ratio.

  c = √(a²+b²) = √(3² +3²) = √18 = 3√2

Then the ratio to a leg is ...

  c/a = (3√2)/3 = √2

sin3a=12/15

step-by-step explanation:

since one side was multiplied by 3 the other side must also be multiplied by 3.