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March 31, 2015

March 31, 2015

Posted by **Kheladi Nep** on Thursday, June 10, 2010 at 9:23am.

a)use the formula to find the distance to the horizon for an observer on the london eye, 135m above ground.

b)rearrange the formula to make h the subject.

- math -
**tchrwill**, Thursday, June 10, 2010 at 9:59amTo determine how far in miles we can see from the top of a building of height h ft., we use d = sqrt[1.5h].

Using your expression of d = sqrt(13h), d in km and h in meters,

d = sqrt[13h) = sqrt[13(135)] = 41.89km.

= 25.97 miles

Using my expression, d = sqrt(1.5h), d in miles and h in feet,

d = sqrt[1.5(135)3.281] = 25.77 miles

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