Q4 of 95 Page 14

ABCD is a rectangle with ∠ABD=40°. Determine ∠DBC.

Given,


ABCD is a rectangle


∠ABD = 40∘


∠ABD + ∠DBC = 90∘ (angles of rectangle)


∠DBC = 90∘ – 40∘ = 50∘


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