dayana87 dayana87

13-04-2020
Mathematics

contestada

What’s the value of x??

Whats the value of x class=

Respuesta :

PollyP52 PollyP52

13-04-2020

Answer:

C. √55.

Step-by-step explanation:

The vertical line cuts the base of the triangle in 2 so the right angled triangles both have a base 3 cm long.

So by Pythagoras:

8^2 = x^2 + 3^2

x^2 = 8^2 - 3^2

x^2 = 55

x = √55.

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