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kow [346]
3 years ago
15

If the shadow of a tree is 7 m long and the shadow of a person who is 0.9 m tall is 2 m long, how tall is the tree?

Mathematics
2 answers:
NikAS [45]3 years ago
7 0

Answer:

The tree is 3.15 meters tall

Step-by-step explanation:

If the shadow of a tree is 7 m long and the shadow of a person who is 0.9 m tall is 2 m long.

The ratio of height of a person to the shadow is 0.9 / 2

Let x be the height of the tree

We need to make a proportion

height of a person/ shadow = height of the tree / shadow

\frac{0.9}{2} =\frac{x}{7}

Cross multiply the numbers

7 * 0.9 = 2x

6.3 = 2x

Divide by 2 on both sides

x= 3.15

The tree is 3.15 meters tall

Assoli18 [71]3 years ago
4 0
The tree is 3.15m tall.
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