18-07-2019
Mathematics

contestada

What is measure of angle ABD ?

What is measure of angle ABD class=

Respuesta :

liu14505 liu14505

18-07-2019

Answer:

21

Step-by-step explanation:

According to the diagram we can prove that the two triangle are congrunt use ing HL,so that 3x+9=45-6x

x=4

SO angel ABD is 21

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