amunoz160066 amunoz160066

06-08-2019
Mathematics

contestada

1) 4.
2)9.
3)10.
4)None of the choices are correct.

1 4 29 310 4None of the choices are correct class=

Respuesta :

treegiraffe treegiraffe

06-08-2019

Answer:

We know angle ABD is a right angle due to the marking, therefor 4x + 5x= 90.

9x = 90

x = 10.

Therefor the unknown value of x is 10.

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