Question

what is the value of x?
please help​

Answer 1

Answer:

100 is the correct one

Step-by-step explanation:

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Answer 2

Answer:

x=100

Step-by-step explanation:

a+b+140=180

then a+b =180-140=40

in the triangle RST , (a+a)+(b+b)+x=180

or, 2(a+b)+x=180

or,2*40 +x=180

or,x=180-80=100