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5) In the given right-angled triangle ABC, angle A is unknown, side BC is 2.4, and side AC is 4.8. The right angle is at C. Find the measure of angle A.
Вопрос:
5) In the given right-angled triangle ABC, angle A is unknown, side BC is 2.4, and side AC is 4.8. The right angle is at C. Find the measure of angle A. Смотреть решения всех заданий с листа Ответ: Решение: В прямоугольном треугольнике ABC, угол C = 90 градусов. Катет BC = 2.4. Катет AC = 4.8. Используем тригонометрическую функцию тангенс для угла A: tan(A) = противолежащий катет / прилежащий катет = BC / AC tan(A) = 2.4 / 4.8 = 1/2 = 0.5 Найдем угол A, используя арктангенс: A = arctan(0.5) A ≈ 26.565 градусов Ответ: ≈ 26.57°
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