The sum of 5 and twice the number

What is the exact volume of the cylinder (radius 13 in., height 30 in.)

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.

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0