bill533:

https://prnt.sc/l93b9t

2 months ago
bill533:

@mhchen

2 months ago
mhchen:

|dw:1540229966272:dw| In this picture, you see where the angle is a right-angle? That's because it's a perpendicular bisector. Now can you find x with the help of this picture?

2 months ago
bill533:

yes

2 months ago
mhchen:

|dw:1540230494465:dw| okay so what is x?

2 months ago
bill533:

90

2 months ago
mhchen:

Yup.

2 months ago
mhchen:

|dw:1540230731669:dw| Now. You know that all angles inside a triangle add up to 180 degrees right? And based on the image, the top 2 angles are the same, since a bisector divides it into 2 equal parts. If all the angles add up to 180, then 90 + 47 + y = 180. Can you find y?

2 months ago
bill533:

i think so

2 months ago
bill533:

what else ?

2 months ago
bill533:

i can figure out the y

2 months ago
mhchen:

well 90 + 47 + y = 180 137 + y = 180 right? y = 180 - 137

2 months ago
mhchen:

understand so far?

2 months ago
bill533:

yes ma'am i do

2 months ago
bill533:

which makes it 43

2 months ago
bill533:

correct ?

2 months ago
mhchen:

yeah

2 months ago
bill533:

thank you mhchen for your help on this i really do appreciate your tips and explanation it

2 months ago
bill533:

it really helped me through it thank you

2 months ago
mhchen:

lol np

2 months ago