In triangleABC, angle B =90 , angle A= 30 , AC = 14 then find AB.
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given : angle B= 90°
angle A =30°
angle B = 60°.
remaining angle of triangle
a/c to 30-60-90 theorem
we know the side opposite to60° is √3/2 of hypotenuse
so, AB = √3/2 of AC
=√3/2 × 14
AB = 7√2 units
we know that side opposite to 30° is 1/2 of hypotenuse
so, BC = 1/2 of AC
=1/2 × 14
= 7 units
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