Lighthouse

Marcel (point J) lies in the grass and sees the top of the tent (point T) and behind it the top of the lighthouse (P). | TT '| = 1.2m, | PP '| = 36m, | JT '| = 5m. Marcel lies 15 meters away from the sea (M). Calculate the lighthouse distance from the sea - length of |P'M| .

Correct result:

x1 =  135 m
x2 =  165 m

Solution:

5/1.2=x1/36  x=36 51.2=150 m m=15 m  x1=xm=15015=135 m
x2=x+m=150+15=165 m



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