Answer:
Volume = 516.1425 cubic feet
Step-by-step explanation:
The pentagon base appears regular. so every side is 10 feet in length.
Now we need to figure out the area of the pentagonal base in order to find volume.
Volume V = (pentagon base area)*height
I need to find the apothem length as indicated in the drawing.
call it "a"
360/5 = 72 degrees.
36 degrees.
5/a = tan 36 , a = 5/(tan 36) = 6.88190 feet.
Area of pentagon base = 5 * (1/2)*10* a = 5*(1/2)*10* 6.88190 =172.0475 sq. ft
Area of pentagon base = =172.0475 sq. ft
V = 172.0475 * 3 = 516.1425 cubic feet
Answer:
Step-by-step explanation:
Hello!
The standard form of a quadratic is .
To convert the vertex form to standard form, we have to expand the parenthesis and add the constant.
Convert:
The standard form is
The answer would be A. 1 1/5
48/40 = 1 8/40
1 8/40 Simplify to 1 1/5
Hope it helps !!
Answer:
The first one is 5.83 or -5 5/6
The second one is -414 1/3
The last one is 290
Answer: 240 cm^3
Explanation: you find the area of the base triangle with the formula 1/2 x b x h which in this case is 1/2 x 10 x 6 which = 30, you then multiply by the length, 8.
8 x 30 = 240