a post 47 m high is supported by wires attached to its top and to a point on level ground, 18 m from the foot of post. find the length of each wire
a post 47 m high is supported by wires attached to its top and to a point on level ground, 18 m from the foot of post. find the length of each wire
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Solution
AB=47m
BC=18m
using Pythagoras
AB²+BC²=AC²
47²+18²=AC²
2209+324=AC²
2533=AC²
Length of wire =50.3289m
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Answer:
AB=47m
BC=18m
using Pythagoras
AB²+BC²=AC²
47²+18²=AC²
2209+324=AC²
2533=AC²
ac = \sqrt{2533}ac=
2533
Length of wire =50.3289m