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SecretGuest23
@SecretGuest23
November 2021
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Найти угол CBA
Если можно , то написать решение
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Kазак
17
ΔMNA=ΔMNC - три равных стороны
∠NMA = ∠NMC = 50°
∠CMB = 180-∠NMA-∠NMC = 180-50-50 = 80°
ΔCBM - равнобедренный, и
∠CBA = ∠CMB = 80°
18
Δcde = Δcae - три стороны
∠acb=25+25 = 50°
Δabc - равнобедренный
∠cba=∠acb = 50°
2 votes
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Answers & Comments
ΔMNA=ΔMNC - три равных стороны
∠NMA = ∠NMC = 50°
∠CMB = 180-∠NMA-∠NMC = 180-50-50 = 80°
ΔCBM - равнобедренный, и
∠CBA = ∠CMB = 80°
18
Δcde = Δcae - три стороны
∠acb=25+25 = 50°
Δabc - равнобедренный
∠cba=∠acb = 50°