You have to distribute it.
EXPLANATION:
13 pt 13-p
13-13
0 pt-p
-p-0
-p= 14
14 pt
= 14
Answer:
Step-by-step explanation:
for missing angle of triangle ABC
let the missing angle be y
31+111+x=180(sum of interior angle of a triangle is 180 degree)
142+y=180
y=180-142
y=38 degree
x=y(being alternate angles)
x=38 degree
Line is a perpendicular bisector of the angle
