Răspuns:
vezi mai jos!
Explicație pas cu pas:
c)
T. Pitagora/numere pitagorice: 10, 8, 6.
10^2 = c^2 - 6^2
c^2 = 100 - 36 = 64, c = rad64 = 8 cm
P= a+b+c = 10+8+6 = 24 cm
A = c x c / 2 = 8 x 6 / 2 = 8 x 3 = 24 cm^2.
b) A = c x c / 2 = ip x h / 2
h = c x c / ip = 8 x 6 / 10 = 8 x 3 / 5 = 24/5 = 4,80 cm
a) T.catetei:
c^2 = pr(c) x ip
pr(c)=c^2 / ip
pr(c1) = c1^2 / ip = 8^2 / 10 = 64/10 = 6,40 cm
pr(c2) = c2^2 / ip = 6^2 / 10 = 36 / 10 = 3,60 cm.
