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3 years ago

Please help with 13, giving brainliest

Mathematics

2 answers:

Veseljchak [2.6K]3 years ago

8 0

Answer:

Step-by-step explanation:

m《 Q+ m《R +m《S =180 (Angles of a triangle add up to 180 degrees )

8x-17 +19x +4 +5x+1=180

32x-12=180

32x =180+12

32x =192

32X /32=192 /32

x=6

substitute x to angle Q, R and S

mQ=8 (6)-17

=31

mR=19 (6)+4

=118

mS=5 (6)+1

=31

N76 [4]3 years ago

7 0

X=6, s=31, r=118, Q=31

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