Answer:
#7: MK, LS and PR
#8: PN and PQ
#9: no
#10: no
Step-by-step explanation:
#7: lines MK, LS and PR are not intersecting each other, so these lines are parallel each other
#8: between lines PN and PQ is an right angle, so the lines PN and PQ are perpendicular
#9: lines PN and KM have an intesecting point, so they're not parallel
#10: there is no right angle between lines PR and NP
Answer:
1.7
Step-by-step explanation:
Answer: x= 19
Step-by-step explanation:
(8x-7)+(x+16)=180
Answer:
<h3>
x =3</h3>
Step-by-step explanation:

Colete os termos semelhantes e simplifique

Divida ambos os lados da equação por 2
