When the shape is the same but the form is bigger or smaller
figures 1 and 2
Congruent
When they have the same interior angles but different side lengths
Congruent figures are always similar. However, similar figures are only sometimes congruent.
All congruent figures are similar figures, and have identical sizes.
Similar figures are geometrical figures, which have the same shape but not the same size
Are congruent figures always similar? Yes.
Its called SIMALUR * * * * * SIMILAR
no
Are similar figures.
Take the triangle for instance, there are 3 types. One is the same on each side which is the equilateral. But the other 2 types are flat on 2 sides and diagonal on the other side.
The areas of two similar figures are related by the square of the ratio of their corresponding side lengths. If the ratio of the side lengths of the two figures is ( k:1 ), then the ratio of their areas will be ( k^2:1 ). This means that if one figure is scaled up or down by a factor, its area will change by the square of that factor. Thus, similar figures have areas that scale proportionally to the square of their linear dimensions.