Question

Dauuu coroana repede

Answer 1

Salut! Ai rezolvarea exercitiului in poza atasata!

Answer 2

$\it AM=DM=\dfrac{AD}{2}=\dfrac{60}{2}=30 m\\ \\ \\ \mathcal{A}_{BMC}= \mathcal{A}_{ABCD}-( \mathcal{A}_{ABM}+ \mathcal{A}_{CDM})=\dfrac{AB+CD}{2}\cdot AD-\\ \\ \\ -\bigg(\dfrac{AB\cdot AM}{2}+\dfrac{CD\cdot DM}{2}\bigg)=\dfrac{120+40}{2}\cdot 60-\bigg(\dfrac{120\cdot 30}{2}+\dfrac{40\cdot 30}{2}\bigg)=\\ \\ \\ =4800-2400=2400\ m^2\\ \\ \\ R\breve aspunsul \ \ corect\ \ este\ \ c)\ \ 2400\ m^2$