Find the Area of Oblique Triangles with SAS and Heron's Formula. All answers are rounded to the tenth place. 9 Mystery Pictures with 27 Color By Number Math Worksheets. Each worksheet includes 10 unique math problems. All pictures have a colored answer key. Directions: Solve the math problem, look at the color next to it, and then color in ALL of the squares that have that answer. Example:a = 20, b = 13, c = 11 Area = ? Answer: 66 a = 12, c = 5, B = 49° Area = ? Answer: 22.6 Please CLICK H