Question
Find the surface area of a cuboid whose:
Length $= 2m,$ breadth $= 4m$ and height $= 5m.$
Length $= 2m,$ breadth $= 4m$ and height $= 5m.$
✓
Answer
Length of cuboid $( I )=2\ m$
Breadth $(b)=4\ m$
Height $(h)=5\ m$
$\therefore \text { Surface area }=2(l\times b+b \times h+h \times l)$
$=2(2 \times 4+4 \times 5+5 \times 2)\ m^2$
$=2(8+20+10)\ m^2=76\ m^2$
Breadth $(b)=4\ m$
Height $(h)=5\ m$
$\therefore \text { Surface area }=2(l\times b+b \times h+h \times l)$
$=2(2 \times 4+4 \times 5+5 \times 2)\ m^2$
$=2(8+20+10)\ m^2=76\ m^2$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Find the squares of the following numbers using diagonal method: $295$
→"When a monomial is divided by a monomial, the quotient is a monomial."
Siya disagrees with the statement as $x^2$ divided by $x^2$, is 1. Is Siya correct? Justify your answer.
→Siya disagrees with the statement as $x^2$ divided by $x^2$, is 1. Is Siya correct? Justify your answer.
Asha got $86.875\%$ marks in the annual examination. If she got $695$ marks, find the number of marks of the examination.
→The sum of three consecutive multiples of $11$ is $363.$ Find these multiples.
→Find the cube root of each of the following natural numbers:$1728$
→Find the value of $x$, so that:
$\Big(\frac{5}{3}\Big)^{-2}\times\Big(\frac{5}{3}\Big)^{-14}=\Big(\frac{5}{3}\Big)^{8\text{x}}$
→$\Big(\frac{5}{3}\Big)^{-2}\times\Big(\frac{5}{3}\Big)^{-14}=\Big(\frac{5}{3}\Big)^{8\text{x}}$
Look at the following rectangles. Which rectangles are similar to each other? You can verify this by measuring the width and height using a scale and comparing their ratios.
If $5^{2 x+1} \div 25=125$, find the value of $x$.
→$\frac{\text{x}+1}{4}=\frac{\text{x}-2}{3}$
→Daljit received a sum of $Rs. 40000$ as a loan from a finance company. If the rate of interest is $7\%$ per annum compounded annually, calculate the compound interest that Daljit pays after $2$ years.
→