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In a right-angled triangle, the side opposite the right angle is unknown, how do you find out the unknown length? (Hypotenuse I think)

Sagot :

Yes, it is the hypotenuse. You can use pythagoras' theorem or the sine rule. you can use either as long as you know the two other side lengths of the triangle
a²+b²=c² (c is the hypotenuses