Question

find angle DBC BDC and DBA

Answer 1

Given:

       ABCD is a ║gm.

∠ ADB = 65°

∠DBC = ∠ADB (∵AD ║ BC AND DB IS A TRANSVERSAL.)

∴∠DBC = 65°

∠BDC = ∠ADB (∵DIAGONALS OF A║GM BISECTS IT'S ANGLE.)

∠BDC = 65°

∠DBA = ∠BDC(∵INTERIOR ALTERNATE ANGLE

∠A = 180°-130°=50°

Answer 2

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