What is the Probability rolling an odd number?

50%

Step-by-step explanation:

If we are talking about a six-sided die, there are only six outcomes: 1, 2, 3, 4, 5, 6. The only odd number outcomes are 1, 3, 5. To find the probability, we divide the number of desired outcomes by the total number of outcomes.

3/6 = 1/2 = 0.5 = 50%

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4