In triangle ABC, angle C is straight, BC = 9, sinA = 0.3. Find AB.

In a right-angled triangle, the sine of its acute angle is the ratio of the length of the opposite leg to the length of the hypotenuse.

SinBAC = BC / AB.

AB = BC / SinBAC = 9 / 0.3 = 30 cm.

Answer: The length of the hypotenuse AB is 30 cm.



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