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Vesnalui [34]
3 years ago
14

PLEASE HELP ASAP PLEASE I'VE BEEN UP ALL NIGHT TRYING TO DO IT I DON'T UNDERSTAND PLZ HELPP!!​

Mathematics
2 answers:
shusha [124]3 years ago
6 0

Answer:

Angle COD=40

Step-by-step explanation:

(2a+62)+ (54-a)+(5a-20)=180

6a+96=180

6a=84

a=14

Angle AOC=2(14)+62=90

Angle COD=54-14=40

Angle DOB=5(14)-20=50

lianna [129]3 years ago
3 0

Answer:

Angle COD, 40 degrees

Step-by-step explanation:

Alrighty, to start, Angle AOB is a 180 degree angle because it is a line.

Therefore, if we combine all of the variables and numbers together, we can set it equal to 180 degrees to find a.

2a+62+54-a+5a-20

6a+96=180

6a=84

a=14

Next, plug in this value into each of the given angles provided with variables and numbers:

<u>Angle AOB: </u>

2a+62

2(14)+62

28+62

90 degrees

<u>Angle COD: </u>

54-a

54-14

40 degrees

<u>Angle DOB: </u>

5a-20

5(14)-20

70-20

50 degrees

<em>From this, it can be found that Angle COD has the smallest angle, with it being 40 degrees.</em>

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