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Lelechka [254]
3 years ago
9

How to find the scale factor of two triangles

Mathematics
1 answer:
BabaBlast [244]3 years ago
6 0

Answer:

Here's how to do it.  

Step-by-step explanation:

The two triangles must be similar, that is, corresponding angles must be equal, as in the diagram below.

1. Find a corresponding pair of sides

Assume that ∆ABC is the original and ∆DEF is its scaled image.

Then, AB and DE are corresponding sides, with lengths of 8 and 12 units , respectively.

2. Set up a ratio

Ratio = side length in image/side length in original = 12/8

3. Simplify the ratio

The simplified ratio is the scale factor (SF).

SF = 12/8 = 3/2 = 1.5

The scale factor is 1.5.

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Cosine is adjacent/hypotenuse
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hope this helps:)
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4 years ago
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Ayman can print a document on an apricot printer in 4.5 min how long it will take him to print the same document on a sure-fire
Semenov [28]

Use the four-step plan to solve each problem.

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a. 3 min

b. 3 min

7. The towns of Jackson, Bellevue, Salem, and

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distance from Bellevue to Salem is 18 miles. What

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ANSWER:  

127 mi

10. Persevere with Problems Noah has a $20 gift

card for an online music store. All songs at the store

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13. A 26-mile section of a highway is designated as a

scenic byway. New signs will be placed at the

beginning and end of this section and at every 0.5

mile in between. How many new signs are needed?

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D 53

ANSWER:  

D

Use the four-step plan to solve each problem.

1. Financial Literacy Antonia bought a video game

system for $323.96. She paid in 12 equal

installments. About how much did she pay each

month?

ANSWER:  

Sample answer: about $27

4. The planet Mercury takes 56.6 Earth days to rotate

once about its axis.

About how many times does it rotate about its axis

during one Earth year?

ANSWER:  

Sample answer: about 6 times

6. The table shows the speed, in pages per minute

(ppm), for three different

brands of printer.

a. Andrew needs to print a document that is 180

pages long. How much longer will it take to print the

document on a Sure-Fire printer than on a Centroid

printer?

b. Carlos can print a document on an Apricot

printer in 4.5 minutes. How long would it take him

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ANSWER:  

a. 3 min

b. 3 min

7. The towns of Jackson, Bellevue, Salem, and

Denton lie along a highway, in the order listed. The

distance from Jackson to Salem is 84 miles. The

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distance from Bellevue to Salem is 18 miles. What

is the distance from Jackson to Denton?

ANSWER:  

127 mi

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card for an online music store. All songs at the store

have the same price. After Noah buys 3 songs, the

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$10

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22 \frac{4}{5} km/h

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Answer:

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5 0
3 years ago
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