C-14-Q069mediumsingle_mcq
The relation in the proof follows from —
The relation in the proof follows from —
- aTheorem 28 (corollary 1)
- bPythagoras' theorem
- cSAS congruence
- dparallelogram law
ব্যাখ্যা
With , the line divides the two sides of proportionally, which is exactly the result of Theorem 28 (corollary 1). This yields .