Answer:
50 ft
Step-by-step explanation:
For this problem we will use the Pythagorean theorem which is: a^2+b^2= c^2
I found the length for both of the legs on this triangle which are: 30 ft (for the side on the far left) and 40ft (for the other leg of the triangle whose hypotenuse is the walkway).
Now that we know the two legs we can use the Pythagorean theorem:
40^2 + 30^2 = 2500
then take the square root of 2500 in order to find the hypotenuse length:
Square root of 2500= 50ft
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