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Triunghiul ABC are AB=7 cm ,AC=24 cm, BC=25 cm. Determinati lungimea H corespunzatoare laturii BC. Va roog !!

Răspuns :

s=(7+24+25)/2=56/2=28 ; A=√(s(s-a)(s-b)(s-c)=> A=√28*21*4*3=> A=84. A=b*h/2 => 84=25*h/2; 25h=168=>h=168/25=6,72cm