18
Explanation:
B is the vertex angle of isosceles triangle. So AB = BC and base side is AC.
As AB = BC
So,
5
x
−
28
=
2
x
+
11
5
x
−
2
x
=
28
+
11
3
x
=
39
x
=
39
3
=
13
AC =
x
+
5
= 13 + 5 = 18
Try using demos graphs to see it. there ed is an app and a website
Answer:
Because there weren't enough big brains out there to cover all of the major things and that there we're major time periods of things.
Explanation: