Lucas is riding his bike to the park which is 2 kilometersfrom his house. When he is one-fourth of the way tothe park, it starts
to rain. Lucas turns around and ridesback home. How many meters did Lucas ride?st Practice
1 answer:
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53%
107%
107%
Answer:
The tree is 17.5 ft tall
Step-by-step explanation:
We can use proportions to solve this.
Notice that Emily (5 feet tall) and her shadow (8 feet long) constitute the two legs of a right angle triangle (see attached image).
The nearby tree (unknown height H), will also cast a shadow (28 ft long) with the same inclination as Emily does due to the unique position of the sun relative to them.
Then we can use the proportion associated with the sides of similar triangles:
Then, we can solve for H in the equation:
