BIG POIN

3]

p = 30 cm

l = 10 cm

t = 18 cm

a = 12 cm

V = (p × l × (t – a)) + (a × l × a) + (a × l × a)

V = (30 × 10 × (18 – 12)) + (12 × 10 × 12) + (12 × 10 × 12)

V = (30 × 10 × 6) + 1440 + 1440

V = 1800 + 2880

V = 4680 cm^3

8]

p = 28 cm

l = 16/2 cm = 8 cm

t = 16 cm

s = 16 cm

V = (s × s × s) + (p × l × t)

V = (16 × 16 × 16) + (28 × 8 × 16)

V = 4096 + 3584

V = 7680 cm^3