Mathematics, 21.10.2020 16:01 jimena15
Katrina needs to cut down a big mango tree that's in the way of the foundation of her
Grandma's house foundation.
• She calls DaKine Tree Trimmers and they tell her the cost to remove the tree is $300 if
the tree is less than 30 feet tall. The cost will be more expensive ($2,000) if the tree is
taller than 20 feet.
• The tree looks pretty tall to Katrina, but how can she tell if it's more than 30 feet tall?
Katrina wants to use shadows on the ground and the fact that she is 5 feet tall to help her
determine if the mango tree is taller or shorter than 30 feet.
• Katrina develops a plan to collect some data and use her knowledge of similar triangles:
a. She determines that at a specific time during the day, she can stand a few feet
away from the tree so that her shadow lies directly on the tree’s shadow and both
shadows end at the same point on the ground
b. At that specific moment, Katrina’s friend determi
Answers: 2
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Katrina needs to cut down a big mango tree that's in the way of the foundation of her
Grandma's hou...
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