Triunghiul dreptunghic ABC,m(A)=90 de grade ,are cateta AB=12 cm si m(B)=60 de grade.Calculati lungimile sgmentelor AC,BC si inaltimea AD. Va rog ajutati-ma.
deoarece m(∡B)=60°⇒m(∡C)=30° conform T.∡30°⇒BC=2AB=2·12⇒BC=24cm inΔABC aplic T.P.⇒AC²=BC²-AB²⇒AC=√576-144=√432⇒AC=12√3cm AD=c₁·c₂/ip=AB·AC/BC=12·12√3/24=6√3⇒AD=6√3cm
