Question

DE ll BC, AD =3cm,AE=4cm and BD=4.5cm,find CE​

Answer 1

CE=6cm

By basic proptonality theorem

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Answer 2

AS DE || BC AND....

GIVEN :AD =3cm AE = 4cm, BD = 4.5 cm

To find : CE = ?

PROOF : BY USING THALES THEOREM OR (BPT)

AB/DB = AE/EC

NOW, PUTTING THE GIVEN VALUES.... WE GET....

3/4.5 = 4/EC

NOW CROSS MULTIPLYING....

=»4 x 4.5 = 3 EC

=» 18 = 3 EC

=» EC = 6 cm

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