Răspunsuri

2014-09-06T14:34:01+03:00
I=30;c1=24;
dem:aplicam (T.P.)c2²=i²-c1²=30²-24²=6²(5²-4²)=6²-3²(aplicam radical)<=>c2=18
AΔ=c1xc2/2=24x18/2=216
1 5 1
2014-09-06T16:23:36+03:00
BC = 30 cm
AB = 24 cm
AC = ? cm

AC² = BC²-AB²
AC² = 30² - 24²
AC² = 900-576
AC² = 324
AC = 18 cm

A = C₁ x C₂ / 2
A = AB x AC /2
A = 24 x 18 / 2
A = 216 cm²