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Alinara [238K]
3 years ago
10

Please please help me in the question someone

Mathematics
1 answer:
Westkost [7]3 years ago
4 0

Answer:

perimeter is  34 cm

Step-by-step explanation:

Notice you need to find the value of two sides whose measure is not given. The first one is horizontal and 10 cm - 4 cm = 6 cm in length

The second one is vertical with a measure of 7 cm - 4 cm = 3 cm

Then, the addition of all sides going clockwise becomes:

7 + 10 + 4 + 6 + 3 + 4 = 34 cm

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Answer:

(x,y) => (2.5x,2.5y)

Step-by-step explanation:

Given

See attachment for ABCD and A'B'C'D'

Required

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AB = (-1,2)\ to\ (2,1)

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The dilation factor (k) is calculated as:

k = \frac{A'B'}{AB}

This gives:

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Factorize

k = \frac{2.5*(-1,2)}{(-1,2)} \ or\ k = \frac{2.5*(2,1)}{(2,1)}

k = 2.5 \ or\ k = 2.5

Hence, the scale factor is 2.5

The dilation rule is:

(x,y) => k(x,y)

(x,y) => 2.5(x,y)

(x,y) => (2.5x,2.5y)

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