Question
Find the surface area of a cuboid whose:
Length $=6 dm$, breadth $=8 dm$, height $=10 dm$.
Length $=6 dm$, breadth $=8 dm$, height $=10 dm$.
✓
Answer
Length of cuboid ( l $)=6 dm$
Breadth (b) $=8 dm$
Height (h) $=10 dm$
$\therefore \text { Surface area }=2(l \times b+b \times h+h \times l)$
$=2(6 \times 8+8 \times 10+10 \times 6) dm^2$
$=2(48+80+60) dm^2=2 \times 188=376 dm^2$
Breadth (b) $=8 dm$
Height (h) $=10 dm$
$\therefore \text { Surface area }=2(l \times b+b \times h+h \times l)$
$=2(6 \times 8+8 \times 10+10 \times 6) dm^2$
$=2(48+80+60) dm^2=2 \times 188=376 dm^2$
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
Complite the following tables given that x varies directly as y.
|
x
|
3
|
5
|
7
|
9
|
|
y
|
...
|
20
|
28
|
...
|
Radius of a circle with centre O is 25 cm. Find the distance of a chord from the centre if length of the chord is 48 cm.
Divide $x^4-2 x^3+2 x^2+2 x^2+x+4$ by $x^2+x+1$
→A, B and C working together can finish a piece of work in 8 hours. A alone can do it 20 hours and B alone can do it in 24 hours. In how many hours will C alone do the same work?
Find product:
$\Big(\frac{−2}{7}\text{a}^4\Big)×\Big(\frac{−3}{4}\text{a}^2\text{b}\Big)×\Big(\frac{−14}{5}\text{b}^2\Big)$
→$\Big(\frac{−2}{7}\text{a}^4\Big)×\Big(\frac{−3}{4}\text{a}^2\text{b}\Big)×\Big(\frac{−14}{5}\text{b}^2\Big)$
The sides of a rectangle are in the ratio 4 : 5 and its perimeter is 180cm. Find its sides.
Factorize:
$a^4 b-3 a^2 b^2-6 a b^3$
→$a^4 b-3 a^2 b^2-6 a b^3$
The rainfall recorded on a certain day was 5cm. Find the volume of water that fell on a 2-hectare field.
The cost of 15 metres of a cloth is Rs. 981. What length of this cloth can be purchased for Rs. 1308?
The price of a sweater was slashed from Rs. 960 to Rs. 816 by a shopkeeper in the winter season. Find the rate of discount given by him.