Maths · KS3 Y8 · Geometry & Measures

Area of a parallelogram

Area of a parallelogramFree4:09Heddy Score 3 of 7, below the standard
Next clip

What you need to know

  • The area of a parallelogram is its base multiplied by the perpendicular height.
  • The height is measured at right angles to the base, not along a sloping side.
  • Moving a triangular section across turns the parallelogram into an equal-area rectangle.

In this clip

Runs 4:09, from 0:05 to 4:14 of the full video.

Heddy Score3/7, Below the standard
See the seven stars
  • Trusted source · passed. The creator's own upload, live and playable here.
  • On the map · not judged yet. A teacher watched it: it mainly teaches this map topic.
  • Spec-true · not judged yet. Accurate, and right for the current UK specification.
  • Focused · passed. One idea, short enough to watch in one go.
  • Accessible · passed. Good captions, clear sound and pictures.
  • Safe for children · not judged yet. Right for 11 to 16 year olds, with no sales pitch.
  • Proven · not judged yet. Earned from our students: they learn from it, find it helpful and watch it to the end.
★ passed · ☆ pending · ✕ failed
Our students

Not enough students yet

Our own students' answers. These are what move ★7 Proven.
On YouTube

1.02M views · 6.19K likes · Math with Mr. J 2.03M subscribers

As reported by YouTube on 2026-11-02. Not part of the Heddy Score.
How the Heddy Score works

Why we picked it

The visual rearrangement supports the base-times-height formula.

Math with Mr. J on YouTubechecked 2026-10-20

Plays from youtube-nocookie.com. No YouTube cookies until you press play.