1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1 +1+1+1+1+1+1+1+1+1+1+2+2+2+2+2+2+2+ 2+2+2+2+2+2+2+2+2+2+2+2+3+3+3+3+3+3 +3+3+3+3+3+3=

102

Step-by-step explanation:

( If this is a serious question ) The answer is 102.

Step-by-step explanation: There are 28 1s, 19 2s, and 12 3s. Multiply 28 x 1, 19 x 2, and 12 x 3. Once you get your answer for each of them, add all of them up.

option: d is correct

step-by-step explanation:

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.