Answer:
x = 3
Step-by-step explanation:
Divide 6 on both sides to get your answer which is 3.
Answer:
216 cm^3
Step-by-step explanation:
I am assuming this is a right triangular prism
V = area of the base * height
We need to find the area of the triangular base
A triangle = 1/2 b*h
= 1/2 (12)4
= 24
Substituting this into the volume equation
V = 24 * 9
216 cm^3
Answer:
does it have a picture
Step-by-step explanation:
Answer:
![6 x^2*\sqrt{3}](https://tex.z-dn.net/?f=6%20x%5E2%2A%5Csqrt%7B3%7D)
Step-by-step explanation:
The base of the pyramid we need to study is a hexagon.
Let's look at the attached image of an hexagon to understand how we are going to find the area of this figure.
Notice that an hexagon is the combination of 6 exactly equal equilateral triangles in our case of size "2x" (notice that the "radius" of the hexagon is given as "2x")
Therefore the area of the hexagon is going to be 6 times the area of one of those equilateral triangles.
We know the area of a triangle is the product of its base times its height, divided by 2: ![\frac{base*height}{2} = \frac{2x*height}{2}](https://tex.z-dn.net/?f=%5Cfrac%7Bbase%2Aheight%7D%7B2%7D%20%3D%20%5Cfrac%7B2x%2Aheight%7D%7B2%7D)
We notice that the triangle's height is exactly what is called the "apothem" of the hexagon (depicted in green in our figure) which measures
, so replacing this value in the formula above for the area of one of the triangles:
![\frac{2x*height}{2}= \frac{2x*x\sqrt{3} }{2}=x^2\sqrt{3}](https://tex.z-dn.net/?f=%5Cfrac%7B2x%2Aheight%7D%7B2%7D%3D%20%5Cfrac%7B2x%2Ax%5Csqrt%7B3%7D%20%7D%7B2%7D%3Dx%5E2%5Csqrt%7B3%7D)
Then we multiply this area times 6 to get the total area of the hexagon (6 of these triangles):
Area of hexagon = ![6x^2\sqrt{3}](https://tex.z-dn.net/?f=6x%5E2%5Csqrt%7B3%7D)
which is the last option given in the list.
The same thing to the other side