Similar shapes

Two shapes are similar when they have the same shape but maybe different sizes: every length of one is the same number of times the matching length of the other, and every angle is the same. Maps, plans and models are drawn to a scale, like 1 to 100. Doubling every length makes the area four times as big.

Depth 1 · Foundation

You can tell whether two shapes are similar (every length times the same number, angles unchanged), use a scale like 1 to 100 to go between a plan and the real thing, and see that doubling every length makes the area four times as big.

Depths of understanding

1
Foundation
You can tell whether two shapes are similar (every length times the same number, angles unchanged), use a scale like 1 to 100 to go between a plan and the real thing, and see that doubling every length makes the area four times as big.
Read it
- Same Shape, Different SizeGeometry Level 1: Shapes and Space
Opens after
PolygonsSimilar shapes are compared side by side and corner by corner, as polygons.AnglesSimilar shapes have exactly the same angles, whatever their size.MultiplicationIn a similar shape, every length is multiplied by the same number.

Your path here

What's still between you and Similar shapes, depth 1, in the order you can learn it.

Where it fits

Builds on

Polygons Angles MultiplicationArithmetic

This concept

Similar shapesGeometry

Builds onThis conceptPolygons Angles MultiplicationArithmetic Similar shapesGeometry