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a 4 ft post casts a 20 inch shadow at the same time a nearby cell phone tower casts a 125 ft shadow. how tall is the cell phone tower?
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a 4 ft post casts a 20 inch shadow at the same time a nearby cell phone tower casts a 125 ft shadow. how tall is the cell phone tower?

User Smileek
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notice the picture below

so, the two triangles are similar by AA

thus
\bf \cfrac{x}{4}=\cfrac{125}{20} solve for "x"
a 4 ft post casts a 20 inch shadow at the same time a nearby cell phone tower casts-example-1
User XXL
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