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Arisa [49]
2 years ago
14

Given the ABC DEF find the value of x and y

Mathematics
2 answers:
Artemon [7]2 years ago
3 0

Answer: x = 7.2, y = 7.5

<u>Step-by-step explanation:</u>

Similar triangles have the same proportions.

Since ABC ≅  DEF, then \dfrac{AB}{DE}=\dfrac{BC}{EF}=\dfrac{AC}{DF}

<u>Let's solve for x:</u>

   \dfrac{BC}{EF}=\dfrac{AC}{DF}

⇒ \dfrac{5}{4}=\dfrac{9}{x}

⇒ 5(x)=4(9)

⇒ x = \dfrac{4(9)}{5}

⇒ x = \dfrac{36}{5}

⇒ x = 7.2


<u>Let's solve for y:</u>

   \dfrac{BC}{EF}=\dfrac{AB}{DE}

⇒ \dfrac{5}{4}=\dfrac{y}{6}

⇒ 5(6)=4(y)

⇒ \dfrac{5(6)}{4}=y

⇒ \dfrac{30}{4}=y

⇒ 7.5=y

HACTEHA [7]2 years ago
3 0

Answer:

y = 7.5 units

x = 7.2 units          

Step-by-step explanation:

We are given the following information:

ΔABC \sim ΔDEF

We have to find the value of x and y.

When two triangles are similar, then the corresponding sides are in same proportion.

This can be written as:

\displaystyle\frac{AB}{DE} = \frac{AC}{DF} = \frac{BC}{EF}

Putting values:

\displaystyle\frac{y}{6} = \frac{9}{x} = \frac{5}{4}\\\\y = 6\times \frac{5}{4} = 7.5\text{ units}\\\\x = 9\times \frac{4}{5}=7.2\text{ units}

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