Raj K.

asked • 11/02/17

In a right triangle ABC 'angle b=90digree' if AC =13cm'BC=5cm find AB

Please give me answer 
 

1 Expert Answer

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Steven J. answered • 11/02/17

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If Angle B is 90 degrees, AC is the hypotenuse
132 - 52 =x2
x=12
the missing side length is 12 by the Pythagorean theorem
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Kenneth S.

Learn to recognize right triangles where sides satisfy the Pythagorean Theorem a2 + b2 = c2.
Sets of numbers such as 3,4,5 
5, 12, 13
8, 15, 17
7, 24, 25
are well known and are (or at least should be) taught in Geometry courses. Such sets of {a,b,c} that satisfy the Pythagorean Theorem are called Pythagorean Triples.
It could be worthwhile to Google 
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11/02/17

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