Answer:
x = 3
Step-by-step explanation:

The short side measures s.
The adjacent, longer side measures s + 4.
The area of a rectangle is the product of the lengths of two adjacent sides.
area = s(s + 4)
Distribute the s.
area = s * s + s * 4
area = s^2 + 4s
Answer: The length is 3 times bigger than the other length.
Step-by-step explanation:
A cube is a three dimensional figure with all edges equal.
So it length = width = height
The formula to find the volume of a cube is
V = s³.
Here s represents the length of the cube.
In the given question we are given s = 2.1 cm
So the volume of the cube shall be
V = 2.1³
V = 2.1 × 2.1 × 2.1
V = 9.261 cm³
Now this can be rounded off to two decimals as 9.26 cm³
The volume of the required cube is 9.261 cm³ 0r 9.26 cm³
Answer:
D) 12.56
Step-by-step explanation:
The radius is 2
C=2 3.14 r
= 12.56