CBSE Tutorials

Similar Triangles | Areas of Similar Triangles Theorem: The ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides. Given: DABC and DPQR such that DABC ~ DPQR. To prove: Construction: Draw AD ^ BC and PS ^ QR Proof:     [ Area of triangle base ´ height]…

Similar Triangles | Criteria for Similarity of Two Triangles Two triangles are said to be similar if (i) their corresponding angles are equal and (ii) their corresponding sides are in the same ratio (or proportional). Thus, two triangles ABC and are similar if (i)    , , and (ii)     In this section, we shall make use of…