Book Online Demo
Check Your IQ

Courses

Class - 11 JEE CourseClass - 11 NEET CourseClass - 12 JEE CourseClass - 12 NEET CourseDropper JEE CourseDropper NEET CourseClass - 10 Foundation JEE CourseClass - 10 Foundation NEET CourseClass - 10 CBSE CourseClass - 9 Foundation JEE CourseClass -9 CBSE CourseClass - 8 CBSE CourseClass - 7 CBSE CourseClass - 6 CBSE Course

Q.

The lateral surface area and total surface area of a cuboid of length 80 cm, breadth 40 cm and height 20 cm are ____ and ____ respectively.


see full answer

Want to Fund your own JEE / NEET / Foundation preparation ??

Take the SCORE scholarship exam from home and compete for scholarships worth ₹1 crore!*
An Intiative by Sri Chaitanya

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

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

Take Free Test

Detailed Solution

The lateral surface area and total surface area of a cuboid of length 80 cm, breadth 40 cm and height 20 cm are 4800 sq.cm and 11200 sq.cm respectively.
Given-
Length (l) of cuboid = 80cm.
Breadth (b) of cuboid =40cm.
Height (h) of cuboid =20cm.
We know,
Total surface area (TSA) of cuboid = 2(lb + bh +lh), where l is the length, b is the breadth and h is the height of the cuboid.
⇒TSA=2(80×40+40×20+80×20)c m 2  
⇒TSA=2(3200+800+1600) cm 2  
 ⟹TSA = 2(5600) cm²
 ⟹TSA = 11200 cm²
Now, we will determine the lateral surface area of the cuboid.
The lateral surface area of a cuboid= 2(l+b)h                 ⇒LSA=2(80+40)20 ⇒LSA=120×40   ⟹LSA = 4800 cm²
Thus, the total surface area of a cuboid is 11200c m 2   and the lateral surface area of a cuboid is 4800c m 2 .  
 
Watch 3-min video & get full concept clarity
Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Books for IIT JEE
Best Books for NEET
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Books for IIT JEE
Best Books for NEET
whats app icon