A triangular prism. The rectangular sides are 2.5 millimeters by 8 millimeters, 8 millimeters by 6.5 millimeters, and 8 millimeters by 6 millimeters. The 2 triangular sides have a base of 2.5 millimeters and height of 6 millimeters. The triangular prism shown has triangular face(s) and lateral face(s). The area of one triangular face is mm2. The surface area of the triangular prism is mm2.

The triangular prism shown has 2 triangular faces and 3 lateral faces.

The area of one triangular face is 7.5 square millimeters.

The surface area of the triangular prism is 135 square millimeters.

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.