1.

In this triangle DE||BC, AD=4cm, DB=6cm and AE=6cm Then the value of EC is​

Answer»

Answer:

7.5cm

Step-by-step EXPLANATION:

GIVEN DE∥BC

∴△ADE∼△ABC

Thus, by PROPERTY of SIMILAR TRIANGLES,

ABAD=ACAE

∴AD+DBAD=AE+ECAE

∴4+64=5+EC5

∴104=5+EC5

∴4(5+EC)=50

∴20+4EC=50

∴4EC=30

∴EC=7.5cm



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