If a - b equals to 20° in given figure, then determine the value of a and b
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Step-by-step explanation:
a + b = 180 ( linear pair ) -(1)
a - b = 20 ( given ) -(2)
add both equation (1) + (2)
2a = 200
a = 100
substitute the value of a in (1)
100 + b = 180
b = 80
hope you understand
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