Question 2 Three cubes each of volume 64cm3 are joined end to end to form a cuboid. Find the total surface area of the cuboid so formed?
Finding Side of Cube from volume
Given that
Volume of 1 cube = 64 cm3
(Side)3 = 64 cm3
a3 = 64 cm3
a3 = 43
a = 4
Surface area of cuboid
Length of cuboid = a + a +a = 4 cm + 4 cm + 4 cm = 12 cm
Breadth = a = 4 cm
Height = a = 4 cm
Hence, l = 4 cm, b = 4 cm , h = 4 cm
Area of cuboid = 2(lb + bh + hl)
= 2(12 × 4 + 4 × 4 + 4 × 12)
= 2(48 + 16 + 48)
= 2(112)
= 224
Hence, Area of cuboid = 224 cm2

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo

Hi, it looks like you're using AdBlock :(

Displaying ads are our only source of revenue. To help Teachoo create more content, and view the ad-free version of Teachooo... please purchase Teachoo Black subscription.

Please login to view more pages. It's free :)

Teachoo gives you a better experience when you're logged in. Please login :)

Solve all your doubts with Teachoo Black!

Teachoo answers all your questions if you are a Black user!