Solve for hypotenuse
Hypotenuse =

Substitute 3 for A and 4 for B

Solve exponents
3^2 = 9
4^2 = 16

Add
9 + 16 = 25

Solve square root

= 5
5 is your answer
The product will be 40 I believe?
The answer is 0.5 metres.
4/2 = 1/2
1/2 100cm is 50cm
50cm = 0.5 metres.