wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Find the quantity of paint required to paint all the faces of a room of dimensions 10 m × 8 m × 10 m, assuming paint to have negligible thickness.


A

800 m2

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

520 m2

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C

360 m2

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

420 m2

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B

520 m2


Length (l) = 10 m
Breadth (b) = 8 m
​Height (h) = 10 m
It is given that all the faces have to be painted and the paint is assumed to have negligible thickness.
Hence, we have to use the formula for total surface area of a cuboid.
Amount of paint required
=2(l×b+b×h+l×h)=2(10×8+8×10+10×10)=2(80+80+100)=520 m2


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Surface Area of Cuboid
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon