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PLEASE HELP, GIVING 20 POINTS

PLEASE HELP GIVING 20 POINTS class=

Sagot :

Answer:

area of the base = (5)(3) + (2)(3) + (5)(3) = 36 [tex]cm^2[/tex]

Height of prism is 5 cm

SA = 2(area of base) + 2(5 x 5)

2(36) + 2(25) = 72 + 50 = 122 [tex]cm^2[/tex]

V = (5)(3)(5) + (2)(3)(5) + (5)(3)(5) = 180 [tex]cm^3[/tex]

Height of prism is 10 cm

SA = 2(area of base) + 2(5 x 10)

= 2(36) + 2(50) = 72 + 100 = 172 [tex]cm^2[/tex]

V = (5)(3)(10) + (2)(3)(10) + (5)(3)(10) = 360 [tex]cm^3[/tex]

% increase

SA:  172 - 122 = 50

50/122 ≈ .409

.409 x 100 = 40.9% increase

V: 360 - 180 = 180

180/180 = 1

1 x 100 = 100% increase