Question

f) ab= 8 radical din sase , ac= bc si m(c)= 90 grade
g) ab=2,4 cm, ac=5 cm si m(a)=150 grade
va rog!!! :)

Answer 1

1.

BC=AC

AB=8√6

∡C=90

pitagora

AB=BC√2

8√6=BC√2

BC=8√3

ariatr. At

At=BC^2 /2 = 64 x 3/2

At=96

2.

ducem BD⊥prelungirea lui CA

tr BDA dreptunghic in D, ∡BAD=30° ⇒ BD=AB/2 ⇒BD=6/5

aria At

At = AC x BD/2=5 x 6/10 = 3

Answer 2

a. Calculezi BC SI AC 
AB^2=2BC^2
64*6=2BC^2
AC=BC=8RAD(3)
A=AC*BC/2=8*8*3/2=32*3=96