Question

please solve this ques no.4​

Answer 1

Answer:

Step-by-step explanation:

a1 = 3cm a2= 4cm a3 = 5cm

A^3 = a1^3 + a2^3 + a3^3

= 27+64+125

= 216

A = 6 cm

Answer 2

Answer:

6 cm

Step-by-step explanation:

Given :-

three cubes having 3,4and5 cm sides

find out :-

side of cube formed by using these three cubes

Solution :-

as we know that volume of a cube is = A³ (where a is side of cube)

So volume of all the cubes is

=> 3³ + 4³ + 5³

=> 27 + 64 + 125

=> 216 cm³

it means the biggest cube which is formed using the three cubes has volume of 216 cm³

now

=> A³ = 216

=> 6³ = 216

means cube's side is 6cm