Question

TRIUNGHIUL ABC MASURA LUI A 90 DE GRADE AD INALTIME D APARTINE LUI BC STIMA CA AB=6CM SI BD=3CM AFLATI CD

Answer 1

Aplicam teorema catetei: AB²= BD*BC
6²=3*BC
36=3*BC
BC=12 cm
BC=BD+DC
3+CD=12
CD=12-3
CD=9 cm