Teaching Rajasthan 3rd Grade REET Mains (Level I & II) Mock Test Quantitative Aptitude Geometry Triangles, Congruence and Similarity
In ΔABC, AB = 20 cm, BC = 7 cm and CA = 15 cm. Side BC is produced to D such that ΔDAB \(\sim\) ΔDCA. DC is equal to:
1
9 cm
2
8 cm
3
10 cm
4
7 cm