Question

Помогите решить две задачи

Answer 1

3)
$x = \sqrt{ {2}^{2} - {(1.2)}^{2} } \\ x = 1.6$
4)
$s1 = \frac{1}{2} a1h 1\\ s2 = \frac{1}{2} a2h2 \\ h1 = 2h2 \\ a1 = 2a2 \\ \frac{s1}{s2} = \frac{4a2h2}{a2h2} = {4} \\ \frac{48}{s2} = 4 \\ s1 = \frac{48}{4} = 12$