Question

In triunghiul oarecare ABC se duc AM⊥BC, M∈(BC) si BN⊥AC, N∈(AC):

Dacă AM=6cm, AC=18cm,AriaABC=72 la puterea a 2-a, calculati BC si BN

Answer 1

A ABC=72^2
AM×BC:2=72^2
6×BC:2=72^2
3×BC=72^2
BC=1728