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Sahay Sir > Question Answers > NCERT Class 9 > Maths > Chapter 9 - Areas of Parallelogram and Triangles > Example 1 : In Fig. 9.13, ABCD is a parallelogram and EFCD is a rectangle. Also, AL⊥DC. Prove that (i) ar (ABCD) = ar (EFCD) (ii) ar (ABCD) = DC × AL

Example 1 : In Fig. 9.13, ABCD is a parallelogram and EFCD is a rectangle. Also, AL⊥DC. Prove that (i) ar (ABCD) = ar (EFCD) (ii) ar (ABCD) = DC × AL

ABCD is a parallelogram and EFCD is a rectangle. Also AL⊥DC. Prove that (i) ar (ABCD) = ar (EFCD) (ii) ar (ABCD) = DC × AL Example 1 : In Fig. 9.13