Question

Urgent pana la 16:00.Dau coroana​

Answer 1

sper ca te-am ajutat! intreaba-ma daca nu intelegi

Answer 2

4.

a) AD=4 cm , BD=8 cm

Teorema inaltimii :

AD² = BD x DC

4²=8 x DC => 8DC=16 => DC=16/8 => DC=2 cm

BC=BD + DC => BC=BD + DC => BC=8+2 => BC=10 cm

b) AD=6cm , CD=9 cm

AD² = BD x CD

6²=BD x 9 => 9BD=36 => BD=36/9 => BD=4 cm

BC=CD+BD => BC=4+9 => BC= 13 cm

5)

a) AD=6 cm , CD= 4 BD

AD²=BD x DC => 6²=BD x 4BD => 4BD²=36 => BD²=9 => BD= 3 cm

BC=BD + CD => BC=3+12 => BC=15 cm

b) AD=6 cm , BD=9CD

AD²=BD x CD => 6²=9CD x CD => 9CD²=36 => CD²=4 => CD=2 cm

BD=9 x 2 => BD=18 cm

BC=CD + BD => BC=18+2 => BC=20 cm