â–ŗABC – ∠A = 40°, ∠B = 70°, āĻšāϞ⧇ â–ŗABC āĻ•āĻŋ āϧāϰāύ⧇āϰ āĻ¤ā§āϰāĻŋāϭ⧁āϜ? | Prostuti