Answer:
Area of one piece of pizza ≈ 12.83 inches
Step-by-step explanation:
First of all let's calculate the area of the pizza.
Pizza is circular in shape, thus,
Area; A = πr²
We are given the radius;r = 7 inches
So, A = π(7²) = 153.94 in²
Now, since the area is divided into 12 equal sized pieces, thus we will divide the total area we got by 12 to get the area of one piece.
Area of one piece of pizza = 153.94/12 ≈ 12.83 inches
Answer:
V = 24416.6
Step-by-step explanation:
V = 4/3 pi r^3
V = 4/3 (3.14) 18^3
V = 4/3 (3.14) 5832
V = 4/3 (18312.48)
V = 24416.64
9514 1404 393
Answer:
B. The lengths of two of the triangle's sides and the measure of the angle between them
Step-by-step explanation:
The usual formulation of the law of cosines is something like this:
c² = a² +b² -2ab·cos(C)
where 'c' is the side opposite angle C, and 'a' and 'b' are the other two sides. That is, to use this formula directly, one needs two side lengths and the measure of the included angle.
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<em>Additional comment</em>
One can use the law of cosines to solve a triangle when any two sides and one angle are known. The use of the formula will give a quadratic in the unknown side length, if it is not the side opposite the known angle. As with the law of sines, if the angle is opposite the shorter of the two given sides, there may be two solutions for the length of the third side.
Hope this helps!
Step-by-step explanation:
75+5=80
80/2=40
so one box holds 40 matches
