AOB is a straight line. If a - b = 40 degree, find a and b.
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AOB is a straight line
therefore => a+b =180 degree .....(i)
=> a-b = 40 degree .....(ii)
By adding (i) &(ii) we get
2a=220 degree
a=110 degree
Substitute the value of a in a+b=180 degree
110 degree +b=180 degree
b =180 degree- 110 degree
b= 70 degree
therefore => a+b =180 degree .....(i)
=> a-b = 40 degree .....(ii)
By adding (i) &(ii) we get
2a=220 degree
a=110 degree
Substitute the value of a in a+b=180 degree
110 degree +b=180 degree
b =180 degree- 110 degree
b= 70 degree
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