Question

two cubes of 10 cm each are joined end to end. Find the TSA and volume

Answer 1

volume-2000cm^3 TSA=1000cm^2

Answer 2

$tsa = 2(lb + bh + hl)sq .\:unit \\ = 2(20 \times 10 + 10 \times 10 + 10 \times 20)cm^{2} \\ = 2(200 + 100 + 200)cm^{2} \\ = 2 \times 500 = 1000cm ^{2}$
$volume =( l \times b \times h) {cm}^{3} \\ = (20 \times 10 \times 10) {cm}^{3} \\ = 2000 {cm}^{3}$