Demo: Drawing a centroid

a) Mark the centroid of the figures:

This drawing uses weight="2" so it counts twice as much as a default-weight element when computing the overall score. allow-blank="true" means submitting without placing any points scores 0% instead of showing an "Invalid submission" error. show-score="true" displays a score badge in a header above the drawing canvas in the question and submitted answer panels.

(The expected tolerance is 1/2 square grid for position and 10 degrees for angle.)

Objects for grading:


Help buttons (not graded):


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Question

QID:
Title:
Demo: Drawing a centroid

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Started at:
2026-08-04 23:38:33 (CDT)
Duration:
0s
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