Question

Find the length of the hypotenuse if the legs of a triangle are 5cm and 12 cm.

Answer 1

L=√5²+12²=13 cm

13 cm is length of the hypotenuse

Answer 2

The correct answer is:  [B]:  " 13 cm" .
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c² = a² + b² ;

In which "c" is the hypotenuse; 

a = 5 ;
b = 12 ;
c = ? ;

Solve for "c" 

+√(c²) =√(a² + b²) ;

 c = √(5² + 12²)  ;

 c = √(25 + 144) ; 
 
 c = √169 ;

 c = 13 cm .
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The correct answer is:  [B]:  " 13 cm" .
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