The area of the polygon is sm? What is the length of side a

If a =6, what is the value of 2a(3b + 5c)?

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

In the figure below, segment ac is congruent to segment ab: triangle abc with a segment joining vertex a to point d on side bc. side ab is congruent to side ac which statement is used to prove that angle abd is congruent to angle acd? segment ad bisects angle cab. triangle acd is similar to triangle abd. segment ad is congruent to segment ac. angle cab is congruent to angle cba.