Question

Find the volume and the total surface area of a cuboid, whose length = 15cm, breadth = 10cm & height = 8cm.​

Answer 1

Answer:

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Answer 2

☞ Question :-

Find the volume and total surface area of a cuboid, whose length = 15cm, breadth = 10cm & height = 8cm

☞ Given :-

• length = 15cm
• breadth = 10cm
• height = 8cm

☞ To find :-

• Volume and T.S.A. of the cuboid

☞ Solution :-

Refer the diagram :-

$\setlength{\unitlength}{0.74 cm}\begin{picture}(12,4)\thicklines\put(6,6){\line(1,0){5}}\put(6,9){\line(1,0){5}}\put(11,9){\line(0,-1){3}}\put(6,6){\line(0,1){3}}\put(4,7.3){\line(1,0){5}}\put(4,10.3){\line(1,0){5}}\put(9,10.3){\line(0,-1){3}}\put(4,7.3){\line(0,1){3}}\put(6,6){\line(-3,2){2}}\put(6,9){\line(-3,2){2}}\put(11,9){\line(-3,2){2}}\put(11,6){\line(-3,2){2}}\put(8,5.5){15 cm}\put(3.8,6.3){10 cm}\put(11.2,7.5){8 cm}\end{picture}$

Volume = l × b × h

= 10 × 5 × 8 cm³

= 400 cm³

Total surface area = lb + lb + lh + lh + bh + bh

➞ 2 (lb + lh + bh)

➞ 2 (15 × 10 × 15 × 8 + 10 × 8)

➞ 2 (150 + 120 + 80)

➞ 700 cm²

So,

• Volume = 400 cm³
• T.S.A. = 700 cm²