Question

me pueden ayudar porfavor​

Answer 1

eee... no le entiendo :(

Answer 2

Explicación paso a paso:

A)

<BOC+ <AOB= 90

5x+4x=90

9x=90

x=90/9

x=10

<BOC=5x=5(10)=50°

<AOB=4x=4(10)=40°

B)

<AOD+ < DOC+ < COB=180

2x+5x+3x=180

10x=180

x=180/10

x=18

<AOD=2x=2(18)=36

< DOC=5x=5(18)=90

< COB=3x=3(18)=54

C)

<AOB + <BOC + <COD=90

2x+3x+4x=90

9x=90

x=90/9

x=10

<AOB=2x=2(10)=20

<BOC=3x=3(10)=30

<COD=4x=4(10)=40