Question

Calcula el área total del prisma. X- X- X + 8​

Answer 1

Propiedad:

A = 2 (a + b)h + 2ab

Solucion:

a = x + 8

b = x - 1

h = x - 1

A = 2(x + 8 + x - 1) . (x - 1) + 2(x + 8)(x - 1)

A = 2(2x + 7). (x - 1) + 2(x² + 7x - 8)

A = (4x + 14) . (x - 1) + 4x² + 14x - 16

A = 4x² + 10x - 14 + 4x² + 14x - 16

A = 8x² + 24x - 30

Espero te haya ayudado:)