Question

Ayuda es pa hoy pliis Tonterías reporto ​

Answer 1

Respuesta:

Explicación paso a paso:

$a)\\p=2.(a+b)= 2(3cm+5cm) = 2 (8cm) = 16 cm\\A =a.b= 3cm(5cm) = 15 cm^{2} \\\\b)\\p= 4.a= 4(4cm) =16cm\\A= a^{2} =(4cm)^{2} = 16cm^{2} \\c)\\P= 2(a+b) = 2(5cm+ 2,7cm) = 15.4 cm\\A= (base x altura) = 5cm(2,5cm) = 12.5 cm^{2} \\\\d)\\P = 4 . l= 4cm+4cm+4cm+4cm = 16 cm\\A = \frac{D.d}{2} =\frac{7cm.4cm}{2} = 14cm^{2} \\\\2.\\P= 2.(a+b) = 2 (5cm+4cm) = 2(9) = 18 cm\\A= (base . altura) = 5cm (3,5 cm) = 17.5 cm^{2}$