Wednesday, December 5, 2007

Rezolvarea unui probleme de cls:VII-a


Se da: un trapez isoscel ale carei diagonale sunt perpendiculare si linia mijlocie este egala cu 24 cm. Calculati aria trapezului.A=((b+B)*h)/2=24*h=24*EFMN=latura mijlocie=(b+B)/2=24∆FOC dr. is. =>OF≡FC≡DC/2∆AOE dr. is. =>OE≡AE≡AB/2EF=h=OF+OE=DC/2+AB/2==(AB+DC)/2=l.m.=24A=24*24=576 cm^2

7 comments:

C r s said...

copy paste de la fesus..ClaR!!!!..x-( ..no pa !..zbye `:*

cosmin said...

cop[iat

jurgiu said...

copy paste dupa tibi

Anonymous said...

foai mama... ce copye buna

Vlad said...

copy paste

Florin Todea said...

copiat clarr

aurelian said...

copiat dar blogu ii bun