Question

please help me with question 19 and 20​

Answer 1

Answer:

I only know 20 one

Step-by-step explanation:

TSA of cube = 6a square = 1176cm square

asquare= 1176/6= 196

volume of cube= acube

(14) cube= 2744cm cube

Answer 2

Step-by-step explanation:

The diagonal of a cube is nearly as simple as the Pythagorean theorem.

It is very simple:

(length)2 + (width)2 + (height)2 = (diagonal)2

In other words, you simply take the square root of the sum of the squares of the length, width, and height of the cube.

Since the length, width, and height of a cube are equal, you can simply multiply one side squared by 3, like this:

For example:

√ 3(x2) = d