Question

pls answer the 4th question

Answer 1

angle COA +ANGLE COB= 180
84+2Z=180
Z=180÷2-84
Z=48
ANGLE BOD=ANGLE COA (vertically opposite. angle)
x=84
angle AOE+EOD+DOB=180
75+Y+84=180
159+Y=180
Y=180-159
Y= 21


X=84
Z=48
Y=21

Answer 2

HEYA MATE,
Here is your answer

NOTE - '/' refers to angle
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BRIEF ANSWER: X = 84° ;

Y = 21° ;

2Z =96° ; Z = 48° ;
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EXPLAINED ANSWER:

/AOC = /X = 84° [ Vertically opposite /'s ]

$\bf\huge\color{blue}{X\:=\:84°}$
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{We know that, /AOD = /AOE + /Y } ____(1)

Now, /AOD + /AOC = 180°

{ When a ray stands on a line, it forms supplementary /'s }

=> /AOD + 84° = 180°
=> /AOD = 96° _____(2)
=> /AOE +/Y = 96° { From (1) }
=> 75° + Y = 96°
=> Y = 21°

$\bf\huge\color{blue}{Y\:=\:21°}$

Now, /AOD = /2Z { VERTICALLY OPPOSITE/'s }

We know that, /AOD = 96°
=> 2Z = 96°
=> Z = $\large\frac{96}{2}$
=> Z = 48°

$\bf\huge\color{blue}{Z\:=\:48°}$
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Hope this helps ❤️❤️❤️❤️❤️