327,525 views
19 votes
19 votes
help me solve this i dont kow how to do this i was absent in class when my teaacher taught this doont send video just answer

help me solve this i dont kow how to do this i was absent in class when my teaacher-example-1
User Mathan Kumar
by
3.6k points

1 Answer

13 votes
13 votes

8:-


\\ \sf \longmapsto 5x+20=40


\\ \sf \longmapsto 5x=40-20


\\ \sf \longmapsto 5x=20


\\ \sf \longmapsto x=(20)/(5)


\\ \sf \longmapsto x=4

9:-

As its a isosceles triangle

  • x=y


\\ \sf \longmapsto x+y+60=180


\\ \sf \longmapsto 2x+60=180


\\ \sf \longmapsto 2x=120


\\ \sf \longmapsto x=y=60

and


\\ \sf \longmapsto z=x+60÷60+60=120

User Heinistic
by
3.1k points