Are triangles formed in each figure similar? If so, name the criterion of similarity. Write the similarity relation in symbolic form.

Any two congruent figures are similar

Write two name of e.m. wave. Give one similarity and one dissimilarity of them.

Write down one similarity and one dissimilarity between visible light and radio wave.

Write an example of a pair of similar figures.

Write one similarity between physisorption and chemisorption.

Write one similarity between physisorption and chemisorption.

Write True or False All the circles are similar.

Answer any One queation : Prove that, if a perpendicular is draw on the hypotenuse from the right angled triangle, two triangles so formed on the two sides of the perpendicular are each similar to the original triangle and also similar to each other.

Two similar triangles are always congruent.

Any two similar figures are congruent.