Write as a complex number:
V-25

C. 5i

Step-by-step explanation:

in this triangle

we know that it is an isosceles triangle because their two sides are equal therefore we know that if opposite sides are equal then opposite angle are also equal therefore angle 50 is equals to angle 50

the sum of a triangle is equal to 180

50+50+x=180

100+x=180

x=80

hope this will helpful