Volume = (4/3) * PI() * r^3
radius^3 = Volume / (4/3) * PI()
radius^3 = 904.78 /
<span>
<span>
<span>
4.18879</span></span></span>
radius^3 =
<span>
<span>
<span>
216.000
radius = 6
</span></span></span>
Answer:
SA = 105 in^2
Step-by-step explanation:
To find surface area, find the area of all the shapes and add it all together. This shape has 4 triangle faces. They are all the same. So we can find one of them and times by 4.
Area of a triangle:
A = 1/2b•h
= 1/2• 5 • 8
= 1/2 • 40
= 20
One triangle has area 20, so times by 4 (bc four triangles)
4•20
= 80
Area of square 5•5
= 25
Add the areas:
80 + 25
= 105 sq in
Answer: 243, 729
<u>Step-by-step explanation:</u>
1, 3, 9, 27, 81 is a geometric sequence where r = 3
a₁ = 1
a₂ = 1 x 3 = 3
a₃ = 3 x 3 = 9
a₄ = 9 x 3 = 27
a₅ = 27 x 3 = 81
To find the next two terms, multiply the previous term by 3:
a₆ = 81 x 3 = 243
a₇ = 243 x 3 = 729
Answer:
base of the triangle, height of the triangle, height of the prism.
Step-by-step explanation:
The formula for calculating the volume of the right triangle prism above is given as 
.
The base is a right triangle. Area of the right triangular base = ½*base*height of the triangle.
Therefore, the dimensions needed to find the volume of the prism are: "base of the triangle, height of the triangle, and height of the prism.
Answer:
C
Step-by-step explanation:
the lines are intersecting at 1,3
