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Find the centroid

Mark the centroid of the figure. You can use the guide line for sketching.

(The expected tolerance is 1/2 square grid.)

Centroid point:


Guide line (not graded):


Delete button:


Correct answer

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Question

Title:
Find the centroid

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Started at:
2026-08-04 22:42:37 (CDT)
Duration:
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{
  "box": [
    {
      "id": 0,
      "p1": {
        "x": 60,
        "y": 320
      },
      "p2": {
        "x": 280,
        "y": 320
      },
      "p3": {
        "x": 280,
        "y": 120
      },
      "fill": "#8effc1",
      "type": "pl-triangle",
      "graded": false,
      "stroke": "#000000",
      "evented": false,
      "opacity": 1,
      "originX": "center",
      "originY": "center",
      "selectable": false,
      "gradingName": "pl-triangle",
      "strokeWidth": 1,
      "strokeUniform": true
    },
    {
      "id": 1,
      "top": 253.33333333333334,
      "fill": "#000000",
      "left": 206.66666666666666,
      "type": "pl-point",
      "label": "",
      "graded": true,
      "radius": 4,
      "evented": false,
      "offsetx": 5,
      "offsety": 5,
      "opacity": 1,
      "originX": "center",
      "originY": "center",
      "selectable": false,
      "gradingName": "pl-point",
      "drawErrorBox": true,
      "widthErrorBox": 20,
      "heightErrorBox": 20,
      "XcenterErrorBox": 206.66666666666666,
      "YcenterErrorBox": 253.33333333333334,
      "objectDrawErrorBox": null
    }
  ]
}
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