A camera is located at the point (2, 4). The camera can rotate 360 degrees so can see in However, the camera cannot see through other objects. A triangle has corners at (3, 1), (4, 5), and (5, 4). a) Is the point (4.5, 3) inside the triangle?

Are the points collinear?

A triangle is defined by the points (-3, 5), (0, 0) and (4, 1).Determine the lengths of sides and measures of the angles of this triangle.

5. a) Find the area of the triangle formed by the points A(1, 2, -1), B(5, 9, 0) and C(-6, 0, 3). b) Determine the angle between a and b given that â - 56 and â - ɓ are perpendicular.