Moodle Quiz XHTML Export

Degrees Vs. Radians

Consider two arcs:

Arc A spans 1 radian.

Arc B spans 1 degree.

Which arc is bigger?

Arc A is bigger
Arc B is bigger

Initialize the variable

What is wrong with this code?

let circleLocation;
function setup() {
  createCanvas(400, 400);
}
function draw() {
  background(mouseX,100,250);
  circle(circleLocation,200,50);
  //console.log(mouseX);
  circleLocation = circleLocation +1
}

It produces this error:

p5.js says: [sketch.js, line 9] circle() was expecting Number for the first parameter, received an empty variable instead. If not intentional, this is often a problem with scope.

The variable name circleLocation is too long.
You can't add a number to a variable.
The variable circleLocation is declared, but it is never initialized. That is, it is never set to a value before it is used.
The draw function never runs.
The variable circleLocation is defined outside of the scope of the draw() function.

Using an image

What has to be done before you can use an image in your p5.js sketch?

It has to be available to your sketch. For instance, by uploading it to the p5js.org server.
It has to be on your computer.
It has to be on a disk.
In Dallas TX.

What is the color?

In the following code, what color would the rectangle be?

let c = color(12, 234, 0);
fill(c);
rect(30, 20, 55, 55);