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3 years ago

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Which of these transformations are isometries?

1 answer:

yulyashka [42]3 years ago

8 0

<span><u><em>Answer:</em></u>
I, II and III.
<span>
<u><em>Explanation:</em></u>
<u>An isometry is</u> a transformation that preserves the size of the pre-image in the image and the corresponding angles and sides are also congruent.

<u>In each one of the images</u>, the figure given is he same size as the pre-image and The corresponding angles and corresponding sides are congruent; therefore they are all isometries. </span></span>

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a=6, b=2

Step-by-step explanation:

Use simplification into substitution
$\frac{a}{3} =1+\frac{2}{b}$

$a=3(1+\frac{2}{b})$

$a=3+\frac{6}{b}$

We can now plug this value of <em>a</em> into the second equation.

$\frac{3+\frac{6}{b} }{4} +\frac{3}{b} =3$

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Then we can match the denominators

$\frac{3b+6}{4b} +\frac{12}{4b} =3$

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Get rid of fractions

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Single out <em>b</em>

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