The length of the base of the second triangle will be 19.1 feet. Then the correct option is B.
What is a Pythagoras theorem?
The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.
The Pythagoras theorem formula is given as
H² = P² + B²
From first triangle, the length of hypotenuse will be
H² = 20² + 8²
H² = 400 + 64
H² = 464 feet
From second triangle, the missing length will be
464 = 10² + B²
B² = 464 – 100
B = 19.07 ≈ 19.1 feet
Then the correct option is B.
More about the Pythagoras theorem link is given below.
https://brainly.com/question/343682
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