The two corners CAB and KAB have a common side AB. What degree can the CAK angle have if the CAB angle is 120 degrees and the KAB angle is 40 degrees?
1. Let’s calculate what the angle CАК is equal to, provided that the sides АС and АС are on different sides from AB, adding the values of the angles CАВ and КАВ.
120⁰ + 40⁰ = 160⁰ angle of the CAK.
2. Let us calculate what the angle CАК is equal to, provided that the sides АС and АС are on the same side of AB, subtracting the values of the CAB angle from the value of the CAB angle.
120⁰ – 40⁰ = 80⁰ degree measure of SAK.
Answer: 160⁰; 80⁰.
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