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Mathematics 9 Online
OpenStudy (anonymous):

A plane is sighted by two observers 1 km apart at angles of 74 and 78 degrees. How high is the plane?

jimthompson5910 (jim_thompson5910):

first draw out the picture |dw:1363746823275:dw|

jimthompson5910 (jim_thompson5910):

we want to find this length here |dw:1363746942466:dw| call it h

jimthompson5910 (jim_thompson5910):

if this length was x |dw:1363746977471:dw|

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