Explain theorem 12 and 13​

Here theorem 12- Chapter 12 Theorems Theorem Within a circle or in congruent circles, central angles have congruent arcs. Converse Within a circle or in congruent circles, arcs have congruent central angles. Theorem 12-4 and Its Converse congruent congruent If LCOD, then AB CD.

Here theorem 13-Theorem 13: If two triangles are similar then their sides are proportional

Step-by-step explanation:

Theorem 12: Let ABC be a triangle. If a line l is parallel to BC and cuts [AB] in the ratio s:t, then it also cuts [AC] in the same ratio.

Theorem 13. If 2 triangles ABC and DEF are similar then their sides. are proportional in order .

Step-by-step explanation:

-362

step-by-step explanation:

(12)(4)+2(12)-34(12)+2(12)-3

  \/         \/         \/         \/

  48 +   24 -   408 + 24 - 3

      \   /               \   /

          72     -     432 - 3 = -363

i think the correct option is the second option.