Question

Longitud de este rectagulo base 7x -1cm h 5x + 2cm y perimetro 74 cm

Answer 1

Respuesta:

b = 20cm ; h= 17 cm

x = 3

Explicación paso a paso:

b = 7x - 1

h = 5x+ 2

P = 2b + 2h = 74

P = 2(7x -1) + 2(5x + 2)

P = 14x -2 + 10x +4

P = 24x +2

24x +2 = 74

x = (74 -2 )/24

x = 72/24

x = 3

b = 7(3)-1

b = 20

h = 5(3)+2

h = 17