Points earned on this question: 0Question 18 (Worth 5 points)Determine whether a triangle can be formed with the given side lengths. If so, use Heron's formula to find the area of the triangle.
Points earned on this question: 5Question 19 (Worth 5 points)Two forces with magnitudes of 90 and 50 pounds act on an object at angles of 30° and 160°, respectively. Find the direction and magnitude of the resultant force. Round to two decimal places in all intermediate steps and in your final answer.
Essay FeedbackYou would want to include the work leading to these results as part of the full answer. Let me know if there are any questions.Points earned on this question: 2.5Question 20 (Worth 5 points)Find the fourth roots of 256(cos 240° + i sin 240°).