∡ABC = 180° - (81° + 37°) = 62°
(AC) = 2∡ABC = 2×62° = 124°
∡BAM = 180° - (90° + 62°) = 28°
(BM) = 2∡BAM = 2×28° = 56°
∡CAE = ∡BAC/2 = 81°/2 = 40°30'
2∡CAE = (CE) => (CE) = 2×40°30' = 81°
∡MAE = 81° - (28° + 40°30') = 12°30'
(ME) = 2∡MAE = 2×12°30' = 25°