What is the perimeter of triangle ABC? 5
A
B.
0 20 units
4
o 22 units
3
0 24 units
2
o 26 units
1
-5 4
-2 -1
4
2 3
5
-2
-4
с
-5

Willard f. libby received his undergraduate degree from . after he completed his graduate work, he became a professor at . in 1960, he won a nobel prize in .