A triangle has angles 30°, 15° and 135°. The ...
A triangle has angles 30°, 15° and 135°. The side opposite to the angle 30° is length 6cm. The side opposite to the angle 135° is equal to
12cm
6cm
6√2cm
12√2cm
Correct answer is C
6sin30 = xsin135
6sin30 = xsin45
x = 6×sin45sin30
= 6√2cm
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