Question

ABCD is a parallelogram BD is diagonal. If angle DAB =85 & angle DBC =60. Find angle CDB, ADB ​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

ABCD is a parallelogram (Given)

We know that,

Opposite angles are equal.

Angle DBC = 60° (Given)

Angle DAB = 85° (Given)

Angle ADB = Angle DBC (Alternate interior angle)

In ∆ADB

Angle DAB + Angle ADB + Angle ABD = 180°(Angle Sum Property of a triangle)

85° + 60° + Angle ABD = 180°

145° + Angle ABD = 180°

Angle ABD = 180° - 145°

Angle ABD = 35°

Angle ABD = Angle CDB (Alternate interior angle)

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