Sagot :
Réponse:
Aire ABCD= Aire ABC+ Aire ACD
A
[tex] = 3c \times 4c \div 2 + 12c \times 5c \div 2[/tex]
[tex] = 12 {c}^{2} \div 2 + 60 {c}^{2} \div 2[/tex]
[tex] = 6 {c}^{2} + 30 {c}^{2} = 36 {c}^{2} [/tex]
Aire de EFGH
=6c×10c=60c^2
Réponse:
Aire ABCD= Aire ABC+ Aire ACD
A
[tex] = 3c \times 4c \div 2 + 12c \times 5c \div 2[/tex]
[tex] = 12 {c}^{2} \div 2 + 60 {c}^{2} \div 2[/tex]
[tex] = 6 {c}^{2} + 30 {c}^{2} = 36 {c}^{2} [/tex]
Aire de EFGH
=6c×10c=60c^2