Science & Mathematics » Physics » Ans= 50 how?

Ans= 50 how?

A post 30m high is supported by wire attached to its top and a point on a level 40 meters from the foot of the post. Then length of the wire is

Below is the recommendation and reference answer for question "Ans= 50 how?" It was collected and sorted by the editor of this site but not sure the answer is entirely accurate.

h2=a2+b2
https://en.wikipedia.org/wiki/Pythagorea...
now you know about 3, 4 , 5 triagles

You never heard of the Pythagorean Theorem? a^2 + b^2 = c^2. You've been given a and b.

x^2+y^2=r^2
r=sqrt(x^2+y^2)
r=sqrt(30^2+40^2)
r=sqrt(2500)
r=50