Answer: 24 cm
Explanation:
Pythagorean theorem:
A^2+b^2=c^2
C^2=the hypotenuse (26 cm)
You just plug in what you have
10^2+b^2=26^2
100+b^2=676
Subtract 100 from both sides
B^2=576
Square root both sides
B=24
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