73.3k views
2 votes
Ayooo i need helppppp

Ayooo i need helppppp-example-1

2 Answers

3 votes

Answer:The answer is in the attached file below

Explanation:

Ayooo i need helppppp-example-1
Ayooo i need helppppp-example-2
User Fhe
by
3.5k points
4 votes

Answer:

angle 7=100 ,angle 8=80

Explanation:

For angle 7:

By using definition of alternate interior angles:

angle 4=angle 6

Subtitute values of angles:

x+2y=3y+20

x+2y-3y=20

x-y=20.......(1)

Now by using definition of alternate opposite angles:

angle 4= angle 2

angle 2=x+2y

Angle 1 and angle 2 are the angles of straight line ,there sum will be 180.

2x+y+x+2y=180

3x+3y=180

x+y=60......(2)

Add (1) and (2):

x-y=20

x+y=60

_______

2x=80

x=40

subtitute x=40 in (2):

40+y=60

y=60-40

y=20

For angle 7:

By using definition of alternate exterior angle:

angle 1=angle 7

angle 7=2x+y

subtitute x and y:

angle 7=2(40)+20

=100

For angle 8:

By using definition of alternate opposite angle:

angle 8=angle 6

angle 8= 3y+20

angle 8=3(20)+20

=80

User Darren Joy
by
3.4k points