Respuesta :

Original
A = 6.5 x 4.8 = 31.2 m^2

Increase base by double = 6.5 x 2 = 13
increase height by 1.5 = 1.5 x 4.8 = 7.2

so
new A after increased = 13 x 7.2 = 93.6 m^2

93.6 - 31.2 = 62.4 m^2

answer
Area will increase by 62.4 m^2