Question

Ayuda por favor, doy coronita al que responda bien

Answer 1

Respuesta:

$cb = \sqrt{ {23}^{2} - {11.5}^{2} } \\ cb = \sqrt{529 - 132.25} \\ cb = \sqrt{396.75} \\ cb = 19.92cm \\ area = \frac{cb \times ac}{2} \\ area = \frac{11.5 + 19.92}{2} \\ area = \frac{31.42}{2} \\ area = 15.7 {cm}^{2} \\ perimetro = cb + ac + ab \\ perimetro = 19.92 + 23 + 11.5 \\ perimetro = 54.42cm$

$area = \frac{ac \times bd}{2} \\ area = \frac{18 \times 10.6}{2} \\ area = \frac{190.8}{2} \\ area = 95.4 {cm}^{2} \\ l = \sqrt{ { (\frac{18}{2} )}^{2} + { (\frac{10.6}{2} )}^{2} } \\ l = \sqrt{81 + 28.09} \\ l = \sqrt{109.09} \\ l = 10.4cm \\ perimetro = 4l \\ perimetro = 4(10.4) \\ perimetro = 41.6cm$