Answer:
is it 82 degrees?
Step-by-step explanation:
Answer:
C. 134.04 
Step-by-step explanation:
The formula to calculate the volume of the cone is:
+) <em>Volume of a cone = 1/3 x Area of base x Height</em>
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The base of the cone is a circle, so that the formula to calculate the are of the base is: <em>Area of base = </em>
x
The radius of the base is 4cm
=> <em>Area of base = </em>
x 4^2 = 3.14 x 16 = 16

The height of the cone is given equal to 8 cm
So the volume of the cone is:
+) <em>Volume of a cone = 1/3 x Area of base x Height = 1/3 x 16</em>
<em> x 8 = 134.04 </em>
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So the answer is C
The perimeter of a polygon is equal to the sum of all its sides. In a rectangle with dimensions length, x and width, y is calculated through the equation,
P = 2x + 2y
If width is y, then length is equal to 3y - 8. Substituting these to the equaiton,
P = 2(3y - 8) + 2y
Simplifying,
24 = 6y - 16 + 2y
24 = 8y - 16
The value of y from the equation is 5.
x = 3y - 8 = 3(5) - 8 = 7
Answers:
x = 7 feet
y = 5 feet