If a:b=4:5, find the angles c and d...

If `a:b=4:5`, find the angles c and d

A

`c=100^(@),d=80^(@)`

B

`c=90^(@),d=90^(@)`

C

`c=110^(@),d=70^(@)`

D

`c=120^(@),d=60^(@)`

Verified by Experts

The correct Answer is:

A

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