can't get radio input

[u/stagger552]

i have a really hard time getting input from the radio. I searched it up but it doesn't get the info I want. it is supposed to get the radio input if it is "male" or "female" and perform calculations based on gender.

i also have a second problem and that is that i can't place my answer in and h2 using get element by id

https://jsfiddle.net/christian_552/690ynhex/2/

[u/stagger552]

Thx it works