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January 28, 2015

January 28, 2015

Posted by **Math** on Thursday, March 1, 2012 at 3:41pm.

thanks for your help.

- geometry -
**Steve**, Thursday, March 1, 2012 at 4:31pmif the height is h,

(135-h)/31 = tan 19°

it doesn't really matter what the angle to the base is, but we'd better have tan 77° = 135/31

- geometry - correction -
**Steve**, Thursday, March 1, 2012 at 4:37pm(135-h)/31 = tan 71°

h = 44.96

probably use h=45m

135-45 = 90

90/31 = 2.90 = tan 71°

- geometry -
**Math**, Friday, March 2, 2012 at 1:47amok ty

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