(Q16) Explain why the triangles are similar and then find the value of x.

vii)

ABDECX1.5 CM15 CM1.6 CM

Solution :

Given :With the given conditions, we can't find the value of x.

Note: If it is given that ∠A = ∠E then

we can say that △ABC ~ △EDC by AAA rule

and
AB
ED
 =
BC
CD
 =
AC
EC
⇒
x
 =
⇒ x =
×
=