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expeople1 [14]
3 years ago
8

How tall would the building be

Mathematics
1 answer:
OverLord2011 [107]3 years ago
3 0

Answer:

18

Step-by-step explanation:

1. Create the ratio 12:9

The first number in the ratio is where the length of the shadow will go. The second number is where the length of the building will go.

2. Subtract 21 by 12 to find out how much we have to add to 9. (21-12=9)

3. Add 9 to 9. (18)

We now have 21:18.

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A statement and portions of the flowchart proof of the statement are shown.
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<h3>What is the Angle Addition Postulate?</h3>

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The missing reason in box 1 would be: angle addition postulate.

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