Question

Pls solve these two question this question carry 30points

Answer 1

total surface. area of cube =54
6asq=54
a=3
so volume =l cube
=3×3×3
27



2. l=30-2=28
b=20-2=18
h=10-2=8
volume=l×b×h
28×18×8

Answer 2

q.10
ans.A cube has 6 faces, so the surface area of ONE face = 54/6 = 9

Each face of a cube is a square, so let's let x = the length of one side of that square

The area of a square = (side length)²

If the area of ONE face = 9, then we can write x² = 9, which means x = 3
So, each side of the cube has length 3

Volume of a cube = (side length)³ = (3)³ = 27
q.11 is in the photo