Question

1. volume a b c d

Explanation:

Step1: Calculate volume of A

Volume of a rectangular prism \( V = l\times w\times h\). For A, \(l = 12\mathrm{cm}\), \(w = 5\mathrm{cm}\), \(h = 11\mathrm{cm}\).
\(V_A=12\times5\times11 = 660\mathrm{cm}^3\)

Step2: Calculate volume of B

For B, \(l = 0.25\mathrm{m}\), \(w = 0.2\mathrm{m}\), \(h = 0.18\mathrm{m}\).
\(V_B=0.25\times0.2\times0.18=0.009\mathrm{m}^3\)

Step3: Calculate volume of C

For C, \(l = 2.1\mathrm{m}\), \(w = 1.5\mathrm{m}\), \(h = 4.2\mathrm{m}\).
\(V_C=2.1\times1.5\times4.2 = 13.23\mathrm{m}^3\)

Step4: Calculate volume of D

For D, \(l = 1.2\mathrm{m}\), \(w = 1.8\mathrm{m}\), \(h = 0.5\mathrm{m}\).
\(V_D=1.2\times1.8\times0.5 = 1.08\mathrm{m}^3\)

Answer:

A. \(12\times5\times11 = 660\mathrm{cm}^3\)
B. \(0.25\times0.2\times0.18 = 0.009\mathrm{m}^3\)
C. \(2.1\times1.5\times4.2 = 13.23\mathrm{m}^3\)
D. \(1.2\times1.8\times0.5 = 1.08\mathrm{m}^3\)