15. An irregular pentagon has side lengths of (x + 3), (2x - 4), (4x + 5),
(3x – 1), and x. Which simplified expression represents the pentagon's
perimeter?
A 11x - 3
B 24x + 60
C 11x + 3
D -9x + 3

Which pair of angles are vertical angles? ∠1 and ∠4∠1 and ∠2∠2 and ∠4∠2 and ∠3more than one answer.

Which angle of rotation is an angle of rotational symmetry for all figures?

Select the correct answer. given: ∆abc with prove: statement reason 1. given 2. ∠cab ≅ ∠edb ∠acb ≅ ∠deb if two parallel lines are cut by a transversal, the corresponding angles are congruent. 3. ∆abc ~ ∆dbe aa criterion for similarity 4. corresponding sides of similar triangles are proportional. 5. ab = ad + db cb = ce + eb segment addition 6. substitution property of equality 7. division 8. subtraction property of equality what is the missing statement in the proof? scroll down to see the entire proof.