S = 45a = 10S = 1/2 * h * a, h - высота.h = 2S/a = 2 * 45 / 10 = 9 (см)Ответ: 9 см.
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S = 45
a = 10
S = 1/2 * h * a, h - высота.
h = 2S/a = 2 * 45 / 10 = 9 (см)
Ответ: 9 см.