What ist the problem?

Question

function pythagoras() {

var Kathete1 = prompt(" Gib die Länge der ersten Kathete an: ");
var Kathete2 = prompt(" Gib die Länge der zweiten Kathete an: ");

if((Kathete1 * 2) + (Kathete2 * 2) (Math.sqrt((Kathete1 * 2 ) + (Kathete * 2))) alert(" Die
Hypotenusenlänge beträgt " + (Math.sqrt((Kathete1 * 2 ) + (Kathete * 2))))

}

Answer 1

The prompt() function returns a string, so you should probably cast the returned value to an actual number before operating on it via the parseInt() or parseFloat() function.

https://www.w3schools.com/jsref/jsref_parseint.asp

https://www.w3schools.com/jsref/jsref_parsefloat.asp

I didn't look for anything else, does this solve your problem?