What’s the distance between the numbers -20 and 30

50 (?)

Step-by-step explanation:

because it takes 20 to get to 0 and another 30 to get to 30. added together makes 50

i can't see the picture : /

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.