Question

13. Find m if:3^m-7^3=1
$}^{?}$
1° = 1 ​

Answer 1

Given:
⇒ Total surface area of cube = 138.24 cm²
To Find:
⇒ Volume of cube
Formula used:
⇒ Total surface area of cube = 6a²
⇒ Volume of cube = a³
Now, firstly we will find the side of cube (a),
⇒ Total surface area of cube = 6a²
⇒ 138.24 = 6a²
⇒ a² = 138.24/6
⇒ a² = 23.04
⇒ a = 4.8 cm
Now, we will find the volume of cube.
⇒ Volume of cube = a³
⇒ Volume of cube = (4.8)³
⇒ Volume of cube = 110.59 cm³
Hence volume of cube is 110.59 cm³.