Question

ma puteti ajuta??
laturile neparalele BC si AD ale trapezului ABCD se intersecteaza in punctul M .
calculati lungimile segmentelor MA,MB,MC,MD,stiind ca AB =20 dm,BC=6 dm,CD=15dm,DA=8dm

Answer 1

DC||AB=>MD peMA=MC peMB=DC peAB=>MDpeMA=MCpeMB=15 pe20 MD pe MA=15 pe20=>MD=15k, MA=20k MD+DA=MA 8=20k-15k 8=5k K=8pe5 MD=15*8 pe5 simplifici15 cu5=3*8=24dm MA=MD+DA MA=24+8=32 dm MCpeMB=15 pe20=>MC=15P,MB=20P MC+CB=MB 15P+6=20P 6=20P-15P 6=5P P=6 pe5 MC=15*6 pe5 simplifici15 cu5=3*6=18dm MC+CB=MB MB=18+6=24 dm