Answer:
f. sqrt 7 meters
Explanation:
Since this is a right triangle, we can use the Pythagorean theorem to solve. We know the hypotenuse is 4 and one leg is 3. We want to solve for the other leg.
a^2 +b^2 = c^2 where a and b are the legs and c is the hypotenuse.
Substituting into the equation
3^2 + b^2 = 4^2
9+b^2 = 16
Subtracting 9 from each side
9-9+b^2 = 16-9
b^2 =7
Taking the square root of each side
sqrt(b^2) = sqrt(7)
b = sqrt(7) meters