Q

# Find the total surface area of the following cuboids (Fig 11.31):

Find the total surface area of the following cuboids (Fig 11.31):

Views

(i)  Total surface area = 2 (h × l + b × h + b × l) = 2(lb + bh + hl)

$=2(6\times4 + 4\times2+6\times2) = 2(24+8+12)$

$= 2(24+8+12) = 88\ cm^2$

(ii) Total surface area = 2 (h × l + b × h + b × l) = 2(lb + bh + hl)

$= 2(4\times4+4\times10+10\times4) = 2(16 + 40+40)$

$= 2(96) = 192\ cm^2$

Exams
Articles
Questions