simonmarsha2021 simonmarsha2021

05-07-2020
Mathematics

contestada

Find the value of x.

Find the value of x class=

Respuesta :

PollyP52 PollyP52

05-07-2020

Answer:

x = √21.

Step-by-step explanation:

Triangles ADB and BCD are similar.

So their corresponding sides are in the same ratio:

x / 7 = 3 / x

x^2 = 21

x = √21.

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