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Mnenie [13.5K]
1 year ago
14

2

Mathematics
1 answer:
Sonja [21]1 year ago
3 0
2(i).
(3y-20)+(4x-5)+(x+y-10)+(2x+5)=360 (Angles sum of it trapezium)
3y-20+4x-5+x+y-10+2x+5=360
7x+4y=390
(Shown)

2(ii).
(3y-20)+(2x+5)=180 (Interior Angles, Parallel Lines)
2x+3y=195
(Shown)

Hope it helps : )
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