You would have to find the proportionality of the two. If his shadow is 3 feet long, and the tree's shadow is 9 that means it is proportioned by 3. So the height of the tree would be 15.
Answer:
I think the answer is 81.
Step-by-step explanation:
Vertical angles are congruent.
x + 3 = 84
- 3 = -3
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x = 81
Answer: 4
Step-by-step explanation:
<span>4(2h + g)
</span><span>4h + 4h +3g + g
</span>2(4h + 2g)