The hypotenuse right triangle is 26 mm one leg of the triangle is 10 mm what is the length of the other leg

A2 + b2 = c2 40 + b2 = 26 40-26=14 So the other leg is 14 and you might still need to calcualate the root

Hypotenuse is 26 mm

so if we use the p theorem

a^2+b^2 = c^2

and theyre giving us c (26mm)

and theyre giving us one leg (10mm)

just plug it in and solve for the missing variable

10^2 + b^2 = 26^2

100+b^2 = 676

b^2 = 576

square root of both sides to solve for b

b = plus or minus 24

But the length cannot be a negative length

so the answer is

b = + 24