Year 1 Cumulative Graded Assignment Part 4 [9 marks] Name: 7. An archaeological site is to be made accessible for viewing by the public. To do this, archaeologists built two straight paths from point A to point B and from point B to point C as shown in the following diagram. The length of path AB is 185 m, the length of path BC is 250 m, and angle ABC is 125. diagram not to scale Archaeological Site C 250 185 125 B 7a. Find the distance from A to C. [3 marks] The archaeologists plan to build two more straight paths, AD and DC. For the paths to go around the site, angle BAD is to be made equal to 85 and angle BCD is to be made equal to 70 as shown in the following diagram. diagram not to scale A 85 250 185 125 B 7b. Find the size of angle BC. 7c. Find the size of angle CAD. 7d. Find the size of angle ACD. +70 C [3 marks] [1 mark] [2 marks]