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PQ = QR = PS. Calculate the size of the ...

`PQ = QR = PS`. Calculate the size of the labelled angles.

A

`a = 40^(@), b = 50^(@) , c = 70^(@) , d = 110^(@)`

B

`a = 42^(@) , b = 48^(@) , c = 69^(@) , d = 111^(@)`

C

`a = 45^(@) , b = 45^(@) , c = 67.5^(@) , d = 112.5^(@)`

D

`a = 50^(@), b = 40^(@), c = 65^(@), d = 115^(@)`

Text Solution

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The correct Answer is:
C
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