Question

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Answer 1

Respuesta:

me sigues porfa @duvannoriegaDuvannoriega

Answer 2

$8) \:S = \frac{1}{2} θ {r}^{2} \\ 4= \frac{1}{2} (x + 1)(x + 1) {}^{2} \\ 8 =(x + 1)(x + 1) {}^{2} \\ x = 1$

$9) \:L1 = θ \times r \\ L1 = 3 \times 1 \\ L1 = 3 \\ S = \frac{3 \times 3}{2} \\ S = \frac{9}{2} \\ S = 4.5$