A, B ꯑꯃꯁꯨꯡ Cꯒꯤ ꯆꯥꯡꯆꯠꯇꯥ ꯑꯣꯏꯕꯥ ꯑꯔꯨꯝꯕꯥ ꯑꯁꯤ $45$ ꯀꯤꯂꯣꯒ꯭ꯔꯥꯝꯅꯤ꯫ A ꯑꯃꯁꯨꯡ Bꯒꯤ ꯆꯥꯡꯆꯠꯇꯥ $40$ ꯀꯤꯂꯣꯒ꯭ꯔꯥꯝꯅꯤ, ꯑꯃꯁꯨꯡ B ꯑꯃꯁꯨꯡ Cꯒꯤ ꯆꯥꯡꯆꯠꯇꯥ $43$ ꯀꯤꯂꯣꯒ꯭ꯔꯥꯝꯅꯤ꯫ Bꯒꯤ ꯑꯔꯨꯝꯕꯥ ꯊꯤꯕꯤꯌꯨ꯫

**ꯏꯛꯌꯨꯏꯌꯔ ꯑꯍꯨꯝ ꯑꯁꯤ ꯁꯦꯠ ꯇꯧ꯫** $A + B + C = 3 \times 45 = 135$ ꯑꯩꯈꯣꯌꯅꯥ $A + B = 2 \times 40$ ꯂꯩ꯫ ꯑꯗꯨꯅꯥ $A + B = 80$ ꯑꯣꯏꯒꯅꯤ꯫ $B + C = 2 \times 43 = 86$ ꯑꯣꯏꯒꯅꯤ꯫ **ꯕꯤ ꯑꯥꯏꯁꯣꯂꯦꯠ ꯇꯧꯕꯥ.** $(A + B) + (B + C) = 80 + 86 = 166$, ꯃꯁꯤꯅꯥ $(A + B + C) + B = 135 + B$ꯒꯥ ꯃꯥꯟꯅꯩ꯫ **ꯁꯣꯜꯕ ꯇꯧꯕꯥ꯫** $135 + B = 166 \Rightarrow B = 31$ ꯀꯦ.ꯖꯤ. **ꯚꯦꯔꯤꯐꯤꯀꯦꯁꯟ.** $A = 80 - 31 = 49$, $C = 86 - 31 = 55$, ꯑꯄꯨꯅꯕꯥ $= 49 + 31 + 55 = 135$ ✓.