Question

Halla CD si AB = 7, DE = 19 y AE = 48

Answer 1

Respuesta:

11

Explicación paso a paso:

AB = 7
DE = 19
AE = 48
BC = CD = x

entonces:
AB + BC + CD + DE = AE
7 + x + x + 19 = 48
26 + 2x = 48
2x = 22
x = 22/2
x = 11