Thales

Thales is 1 m from the hole. The eyes are 150 cm above the ground and look into the hole with a diameter of 120 cm as shown. Calculate the depth of the hole.

Correct result:

h2 =  1.8 m

Solution:

h1=150 cm m=150/100  m=1.5 m x1=1 m x2=1.2 m h1:x1=h2:x2  h2=h1 x2x1=1.5 1.21=95=95 m=1.8 m



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