................................................................
Ответ:
Сторона = 3
Объяснение:
Построим ΔABC, где BC = , ∠B = 60°, ∠C = 75°
∠A = 180° - 60° - 75° = 45°
По теореме синусов - =
sin∠B =
sin∠A =
=
AC = = = = 3
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
................................................................
Verified answer
Ответ:
Сторона = 3
Объяснение:
Построим ΔABC, где BC =
, ∠B = 60°, ∠C = 75°
∠A = 180° - 60° - 75° = 45°
По теореме синусов -
= ![\frac{BC}{sinA} \frac{BC}{sinA}](https://tex.z-dn.net/?f=%5Cfrac%7BBC%7D%7BsinA%7D)
sin∠B =![\frac{\sqrt{3} }{2} \frac{\sqrt{3} }{2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B3%7D%20%7D%7B2%7D)
sin∠A =![\frac{\sqrt{2} }{2} \frac{\sqrt{2} }{2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B2%7D%20%7D%7B2%7D)
AC =
=
=
= 3