There are many solutions. infinite solutions at that. when you solve it it equals itself 2.5w+21= 2.5w+21 so that means all numbers would work as a solution.
Answer:
15
Step-by-step explanation:
12 / 2 = 6
5 / 2 = 2.5
6 x 2.5 = 15
15 inches²
0 has two lines of symmetry half vertical and horizontal
The formula for the area of a rhombus is

where p and q are the measurements of the diagonals of the rhombus.

and <span>

are each half of the diagonals we need. Because a Rhombus is symmetrical, we can double each of these to find the full measurements of the diagonals.
</span>





Therefore the answer is

.
Diameter(d)=8 in.
radius(r)= d/2= 4 in.
height(h)= 3r = 3(4) = 12 in.
Volume=

<u /><em>
r </em>²
<em>h
=</em>(3.14)(4)²(12)
=(3.14)(16)(12)
=602.88 in.
Therefore, the volume of the cylinder is 602.88 in.