Juan sees a maple tree and a pine tree in the forest. He knows the pine tree is 20.68 feet tall. On a sunny day, the shadow of the pine tree is 4.2 feet long while the maple's shadow is 20.02 feet long. Estimate the height of the maple tree.

Question

Juan sees a maple tree and a pine tree in the forest.  He knows the pine tree is 20.68 feet tall.  On a sunny day, the shadow of the pine tree is 4.2 feet long while the maple's shadow is 20.02 feet long.  Estimate the height of the maple tree.

jhonyy9 · Answer

so given pine  tree is 20,68 feet tall
the shadow of the pine tree is 4,2 feet long while the maple's shadow is 20,02 feet long

the height of maple tree equal how many feet ?

so using the rule of 3 simple you can write

pine tree with 20,68 feet tall has shadow of 4,2 feet long 
maple tree with x feet tall has shadow of 20,02 feet long  cross multiplie and calcule the x value

x = 20,02 * 20,68 / 4,2 = ? feet

hope helped understandably easy