Use the Pythagorean theorem 
to find the missing side length of a right triangle
In this case, after you plug in the given numbers your equation is
Then, Just solve that equation for y.
y = 16
So the answer is B, 16 cm.
I hope this helps, please feel free to ask questions if you're still confused :)
In this case, after you plug in the given numbers your equation is
Then, Just solve that equation for y.
y = 16
So the answer is B, 16 cm.
I hope this helps, please feel free to ask questions if you're still confused :)