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krek1111 [17]
2 years ago
10

Can I get some help plz?

Mathematics
2 answers:
Anika [276]2 years ago
6 0

Answer:

X=20 degree

Step-by-step explanation:

∆A+∆D+∆O=180

2x+10+2x+90=180

collect like terms

2x+2x=180-100

4x=80

(4x)/4=(80)/4

x=20 degree

Eva8 [605]2 years ago
5 0

Answer:

angles \: of \: triangle \: add \: up \: to \:  {180}^{0}  \\  {(2x + 10})^{0}  +  {(2x)}^{0}  +  {90}^{0}  =  {180}^{0}  \\ 4x =  {(180 - 90 - 10)}^{0}  \\ 4x =  {80}^{0}  \\ x =  {20}^{0}

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