In an isosceles triangle MРK with the base of the MR, the angle M is equal to 40 degrees.

In an isosceles triangle MРK with the base of the MR, the angle M is equal to 40 degrees. The bisector of the spacecraft of the РКВ angle forms an angle equal to 46 degrees with the HF beam. find the degree measure of the MCA angle.

Since the triangle MKP is isosceles, the angle KPM = PMK = 40, then the angle MKP = 180 – 40 – 40 = 100.

Since the spacecraft is the bisector of the angle PKВ, then the angle PKВ = 2 * PKA = 2 * 46 = 92.

Determine the value of the desired angle of the MCA, the angle MCA = MCP – PKA = 100 – 46 = 54.

Answer: The MCA angle is 54.