Find the unknown angle in the following figure.
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a=54,angle abe =90 ,angle ebc =90
in triangle Abe a+Abe+e=180
e=36
smly in triangle ebc
angle ebc=90
bec=45 and bce =45
DCE+ecb =180
45+ecb=180
ecb= 135
in triangle Abe a+Abe+e=180
e=36
smly in triangle ebc
angle ebc=90
bec=45 and bce =45
DCE+ecb =180
45+ecb=180
ecb= 135
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