Asked by Anonymous
In a diagram,pqr is a straight line,(m+n)=120 and (n+r)=100.find the value of (m+r)
Answers
Answered by
Bosnian
If (m+n)=120 and (n+r)=100
means
m + n =120° and n + r = 100°
then
m + n + r = 180°
Since m + n = 120°
120 ° + r = 180°
r = 180° - 120°
r = 60°
n + r = 100°
n + 60° = 100°
n = 100° - 60°
n = 40°
Again
m + n + r = 180°
m + 40 ° + 60° = 180°
m + 100° = 180°
m = 180° - 100°
m = 80°
m + r = 80° + 60° = 140^
means
m + n =120° and n + r = 100°
then
m + n + r = 180°
Since m + n = 120°
120 ° + r = 180°
r = 180° - 120°
r = 60°
n + r = 100°
n + 60° = 100°
n = 100° - 60°
n = 40°
Again
m + n + r = 180°
m + 40 ° + 60° = 180°
m + 100° = 180°
m = 180° - 100°
m = 80°
m + r = 80° + 60° = 140^
Answered by
Bosnian
m + r = 80° + 60° = 140°
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