Assessment Multiple choice. Read each item carefully. Choose the letter of the best answer and write it on a separate sheet of paper. 1. Find the sum of the interior angles of a heptagon. A 9000 B. 1350 C. 1,8000 D. 400 2. Find the interior angle of a regular octagon. A. 1600 B. 1350 C. 1,8000 D. 400 3. Find the measure of each interior angle, each exterior angle and the sum of the interior angle of a regular dodecagon. A. 1500, 400, 18000 B. 1500, 600, 18000 C. 1500, 300, 18000 D. 1500, 200, 18000 4. Jacob has a large sandbox, the sandbox is 12 meters long and 8meters wide. He wants to surround the sandbox with new pieces of wood. How many meters of wood will he need? A. 40 meters B. 50 meters C. 60 meters D. 70 meters 5. The perimeter of Sophia's Garden is 42 meters. The garden is 6 meters wide. What is the length of the garden? A. 30 meters B. 25 meters C. 15 meters D. 10 meters​