Afence 6 ft high runs parallel to the wall of a house at a distance of 5 ft. find the length of the shortest ladder that extends from the ground, over the fence, to the house. assume the wall of the house is 25 ft high and the horizontal ground extends 20 ft from the fence.

L = 15.53 ft

Step-by-step explanation:

using diagram which is attached below

now, using Pythagoras theorem

L² = b²  + (5 + x)²...............(1)

using similarity of triangle

from equation (1)

for maxima or minima

x = -5 and x =  ∛190  = 5.74

on second derivative 5.74 is the value which comes out to be minimal value which is the distance between the fence and ladder

now,

L² = 241.38

L = 15.53 ft

circumference divided by 3.141592654 then timesthe radius twice

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

answer: 0.1,0.85

step-by-step explanation: