Banner 0
Banner 1
Banner 2
Banner 3
Banner 4
Banner 5
Banner 6
Banner 7
Banner 8
Banner 9

Q.

Choose the correct option: 

The dimensions of a box are 32 cm × 28 cm × 24 cm. It is to be painted from the outside. The area to be painted is ____ cm2.

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya

a

5672

b

4672

c

3672

d

2672

answer is B.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

JEE

NEET

NEET

Foundation JEE

Foundation JEE

Foundation NEET

Foundation NEET

CBSE

CBSE

Detailed Solution

detailed_solution_thumbnail

Since the box is to be painted from the outside, the area to be painted is the total surface area of the box.

The length (l), breadth (b), and height (h) of the box are given as 32 cm, 28 cm, and 24 cm respectively.

Total surface area of the cuboid = 2(lb+ bh + hl)

Total surface area of the box = 2 (32 × 28 + 28 × 24 + 24 × 32) 

= 2(896 + 672 + 768) 

= 2 × 2336 cm2

= 4672 cm2

Hence, the area to be painted is 4672 cm2.

Watch 3-min video & get full concept clarity
score_test_img

courses

No courses found

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Get Expert Academic Guidance – Connect with a Counselor Today!

best study material, now at your finger tips!

  • promsvg

    live classes

  • promsvg

    progress tracking

  • promsvg

    24x7 mentored guidance

  • promsvg

    study plan analysis

download the app

gplay
mentor

Download the App

gplay
whats app icon
personalised 1:1 online tutoring