Could u take the picture from a different angle
You would need to change the slope to -6 because perpendicular lines have opposite reciprocal slopes.
If you are saying that the hypotenuse is 10 cm the you have to solve the following equation using the Pythagorean theory.
4^2 + b^2 = 10^2
16 + b^2 = 100
16 - 16 + b^2 = 100 - 16
b^2 = 84
Find 
The correct answer is 30+100u. Hope this helps!!
Answer:
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