Question

la exercitiul 7 punctul b.Cum faci sa iti dea ac , mc prin teorema lui thales

Answer 1

Răspuns:

BC║MN ⇒ ΔABC ASEMENEA CU ΔAMN⇒ BC/MN=AB/AN=AC/AM

8/10=AC/12⇒ AC=8×12/10=96/10=9,6 cm

MC= AM-AC= 12-9,6= 2,4 cm

Answer 2

$\it \Delta ABC\sim\Delta ANM\ \Rightarrow\ \dfrac{AB}{AN}=\dfrac{AC}{AM} \Rightarrow \dfrac{8}{10}=\dfrac{AC}{12}\ \Rightarrow\ AC=\dfrac{12\cdot8}{10}=9.6\ cm\\ \\ \\ MC=AM-AC=12-9,6=2,4\ cm$