Question

ABCD is a rhombus such that angle acb is equal to 40 degree​

Answer 1

Answer:

acb can't be a angle abc can

Answer 2

Answer:

ABCD is a rhombus such that ∠ACB=40

o

then ∠ADB is ___ .

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ANSWER

∠COB=90

o

In △COB

∠COB+∠OBC+∠OBC=180

o

∠OBC=180

o

−90

o

−40

o

∠OBC=50

o

∠OBC=∠ADB ....[AD || BC]

∠ADB=50

o