Tunafish909
Tunafish909
12-04-2018
Mathematics
contestada
What degrees are angles A and B please
Respuesta :
ag6567
ag6567
12-04-2018
A straight line always equals to 180 degrees. So,
110+a = 180
a = 70
b+c+100 = 180 (We know c is 25 degrees, cuz it's opposite of that arrow.)
b+25+100 = 180
b+125 = 180
b = 55
a=70, b=55
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1rstar
1rstar
14-04-2018
[tex]LINES \: \: AND \: \: ANGLES \\ \\ \\
a \: + \: 110 \: = \: 180 \: \\ ( \: Linear \: Pair \: ) \\ a \: \: = \: \: 70 \: \: \: \: \: Ans.\\ \\ c \: \: = \: \: 25 \: \: \: \: Ans. \\ \: \: ( \: Vertically \: opp. \: angles \: ) \\ \\ Now \: \: , \: \: \: \\ b \: + c \: + 100 = 180 \: \\ ( \: Linear \: Pair \: ) \\ b \: + 25 + 100 = 180 \\ \\ b \: = \: 65 \: \: \: Ans \: [/tex]
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